4AF CIC Hamilton Field Pre-Maury-Island Investigation Cluster, July–August 1947 (Springer / Brown / Davidson / Nelson — Arnold / Johnson / Smith / Rankin / Baker / Ryherd)

Summary

Section 2 of FBI 62-HQ-83894 contains a 30-page Hamilton Field 4AF Counter-Intelligence Corps investigation cluster (pages 159–188) transmitted to the FBI Director by SAC San Francisco on 28 July 1947 and 27 August 1947 as serials 62-83894-95 and 62-83894-98. The cluster is the Bureau’s contemporaneous primary-source record of the first systematic federal investigation of the post-Arnold flying-disc reports — and it sits in the FBI case file weeks before its two principal investigators, Captain William L. Davidson and Special Agent Frank M. Brown, died in the August 1, 1947 B-25 crash at Goble Creek east of Kelso, Washington, returning from the Maury Island visit to Tacoma. (davidson-brown-crash-mission-report)

The cluster is filed at Hamilton Field as CIC case 4AF-1208-I under controlling office Air Defense Command, file D333.5 ID, classified Confidential, signed out by Lt. Col. Donald L. Springer, GSC, AC of S A-2 — the same A-2 officer who, six weeks later, would order Captain George Fugate Jr. to proceed with the joint AAF/FBI Rhodes-photographs interview in defiance of Hoover’s URGENT teletype prohibition (rhodes-phoenix-photographs-1947).

The cluster is the systematic counter-record to the popular framing that the FBI ignored Kenneth Arnold’s June 24, 1947 sighting. It contains:

Frank M. Brown’s in-person interview of Kenneth Arnold at Boise (12 July 1947), with Arnold’s three-and-a-half-page typed personal narrative and his hand-drawn diagram of the objects, both attached as Exhibit A.
Frank M. Brown’s interview of David N. Johnson, aviation editor of the Idaho Daily Statesman, who at the assignment of his general manager flew an aerial search over the northwest states and saw an object himself on July 9 1947 — Johnson’s notarized sworn statement attached as Exhibit B.
Frank M. Brown’s interview of Captain E. J. Smith, United Airlines pilot, at Boise Municipal Airport during a 20-minute scheduled stopover.
Frank M. Brown’s negative-result canvass for Richard Rankin at Palm Springs — eleven separate offices checked, Postmaster interviewed, General Delivery records examined.
Captain William L. Davidson’s interview of S/Sgt Edward R. Baker — Hamilton Field eyewitness to three objects (8 July 1947), one rolling, “five or six men” pointing at the sky.
James A. Nelson’s August 5 1947 follow-up interview of Captain William H. Ryherd — instructor pilot in the 415th Training Unit, who with student 1st Lt. Ward L. Stewart watched two flying objects pass a southbound P-80 over Hamilton Field on 29 July 1947 at the speed-differential at which “the speed of these two objects made a P-80 look as if it was motionless in the air.”

The agents’ own evaluative posture is on the record, in writing, signed. Brown on Arnold: “It is the personal opinion of the interviewer that Mr. Arnold actually saw what he stated that he saw … if Mr. Arnold can write a report of the character that he did while not having seen the objects that he claimed he saw, it is the opinion of the interviewer that Mr. Arnold is in the wrong business, that he should be writing Buck Rogers fiction.” Brown on Johnson: “It is the personal opinion of the interviewer that Mr. Johnson actually saw what he states that he saw.” Brown on Smith: “Captain Smith would have to be very strongly convinced that he actually saw flying disks before he would open himself for the ridicule attached to a report of this type.” Davidson on Baker, Nelson on Ryherd: same construction.

The Bureau-internal political record is also on the file. SAC SF’s transmittal cover letter (page 159) calls the Bureau Director’s attention specifically to Brown’s documented finding that Arnold “is very outspoken and somewhat bitter in his opinions of the leaders of the United States Army Air Forces and the FBI for not having made an investigation of this matter sooner” — and proposes that the Butte Office contact Arnold to “explain to him our lack of jurisdiction in such matters.” This is the FBI registering Arnold’s complaint about FBI/AAF inaction in writing, four days before Davidson and Brown left Hamilton Field for Tacoma.

The cluster is transmitted to FBI HQ as ENCLOSURE under serial 62-83894-95 (page 160 stamped “ROUTED TO” San Francisco SF FBI Office, July 24 1947, with “62-83894-95 ENCLOSURE” handwritten). The August 27 follow-up transmittal (page 184) routes a separate Springer enclosure containing the Lawrence R. King Jr. CIC ADC memo (July 15 1947), an Incident for AF 1208-I prepared by James A. Nelson (August 5 1947), and the Bethel Alaska forwarding letter (page 182) — under serial 62-83894-98. AARO’s PURSUE Release 01 official catalog references the FBI 62-HQ-83894 file generically; this specific 30-page Hamilton Field 4AF CIC cluster is not named or breakout-cited.

What the 4AF CIC Cluster Documents

Springer’s A-2 Cover Report — Synopsis of All Cases (Section 2 page 160)

The covering CI-R1 cover sheet for the entire investigation, classified Confidential, dated 18 July 1947, period 10 Jul 47 to 18 Jul 47, controlling office Air Defense Command, case classification Incident, status Pending. Reason for investigation: “Investigation initiated at the request of Headquarters Air Defense Command reference letter Headquarters Air Defense Command, dated 7 July 47, File D333.5 ID, subject: Investigation of Flying Discs.” Distribution: AAF 2 copies, ADC 1 copy, 4AF Files 1 copy.

The synopsis lists, in order:

Flying Discs first reported in this area 24 June 1947 near Mt. Rainier, Wash., by Kenneth M. Arnold (Incl 1, Exhibit A).
Unidentified object reported 9 July 1947 at approximately 1227 near Boise, Idaho, by David N. Johnson, Aviation Editor, Idaho Daily Statesman (Incl 2, Exhibit B).
Unidentified objects reported by Capt. E. J. Smith, United Air Lines Pilot, 4 July 1947, eight minutes out of Boise, Idaho (Incl 3 MOIC, Incl 7 News Clippings dated 5 July 1947).
Record check of law enforcement agencies, public utilities, and local residences revealed no record of Richard Rankin in Palm Springs (Incl 4).
Unidentified objects reported 8 July 1947 at 1245, traveling northeast over Hamilton Field by S/Sgt Edward R. Baker (Incl 5, Exhibit I).
Unidentified objects reported over Grand Canyon, Arizona, 0910 MST by Lt. W. G. McGinty, USN (Incl 6) and in vicinity of Lake Mead by Lt. E. B. Armstrong, Hq Tenth Air Force, Brooks Field, Texas (Incl 6).
Extent of publicity in local area indicated by press clippings (Incl 7).

Signature block: /s/ Donald L. Springer, DONALD L. SPRINGER, Lt. Colonel, GSC, AC of S, A-2.

Brown’s Arnold Interview (Section 2 pages 161–162) — 12 July 1947

The MOIC (“Memorandum for the Officer in Charge”) cover memo dated 16 July 1947. Brown documents that Arnold was interviewed on 12 July 1947, voluntarily agreed to provide a written report, and produced what would be filed as Exhibit A (the now-famous typed personal narrative).

Brown’s evaluative narrative is the load-bearing primary-source moment. Verbatim:

“Mr. Arnold is a man of 32 years of age, being married and the father of two children. He is well thought of in the community in which he lives, being very much the family man and from all appearances a very good provider for his family. … It is the personal opinion of the interviewer that Mr. Arnold actually saw what he stated that he saw. It is difficult to believe that a man of Mr. Arnold’s character and apparent integrity would state that he saw objects and write up a report to the extent that he did if he did not see them. To go further, if Mr. Arnold can write a report of the character that he did while not having seen the objects that he claimed he saw, it is the opinion of the interviewer that Mr. Arnold is in the wrong business, that he should be writing Buck Rogers fiction. Mr. Arnold is very outspoken and somewhat bitter in his opinions of the leaders of the U.S. Army Air Forces and the Federal Bureau of Investigation for not having made an investigation of this matter sooner.”

Then the operational chart-check, also verbatim:

“However, after having checked an aeronautical map of the area over which Mr. Arnold claims that he saw the objects it was determined that all statements made by Mr. Arnold in regard to the distances involved, speed of the objects, course of the objects and size of the objects, could very possibly be facts. The distances mentioned by Mr. Arnold in his report are within a short distance of the actual distances on aeronautical charts of this area, although Mr. Arnold has never consulted aeronautical charts of the type the Army uses.”

Brown closes with Arnold’s emotional state on the file:

“Mr. Arnold stated that his business has suffered greatly since his report on July 25 due to the fact that at every stop on his business routes, large groups of people were waiting to question him as to just what he had seen. Mr. Arnold stated further that if he, at any time in the future, saw anything in the sky, to quote Mr. Arnold directly, ‘if I saw a ten story building flying through the air I would never say a word about it’, due to the fact that he has been ridiculed by the press to such an extent that he is practically a moron in the eyes of the majority of the population of the United States.”

Signed: FRANK M. BROWN, S/A, CIC 4th AF.

Arnold’s Personal Narrative — “BY KENNETH ARNOLD” (Section 2 pages 163–167)

Arnold’s typed first-person narrative attached as Exhibit A, with biographical preamble (page 163, “SOME LIFE DATA ON KENNETH ARNOLD”) and the sighting account proper (pages 164–167).

The biographical material establishes the witness as: born March 29, 1915 in Subeka, Minnesota; Eagle Scout before age 14; All-state football end North Dakota 1932 and 1933; U.S. Olympic trials in fancy diving 1932; Red Cross Life Saving Examiner 1932-34; University of Minnesota football under Bernie Bierman and swimming/diving under Neils Thorpe; established his own fire-control supply company (Great Western Fire Control Supply); 1,000+ flight hours covering five western states by air; “823 cow pastures” landed in to date; flying a new Callair airplane purchased January 1947, designed for high-altitude take-offs and short rough fields; CAA pilot certificate from senior CAA inspector Ed Leach of Portland, Oregon.

The sighting narrative itself opens (page 164): “The following story of what I observed over the Cascade mountains, as impossible as it may seem, is positively true. I never asked nor wanted any notoriety for just accidently being in the right spot at the right time to observe what I did.”

The flight context: search for a downed marine transport near Mt. Rainier (“supposedly went down near or around the southwest side of Mt. Rainier in the state of Washington and to date has never been found”), 9,500 feet altitude, course set toward Yakima.

The first sighting moment (page 164):

“The sky and air was as clear as crystal. I hadn’t flown more than two or three minutes on my course when a bright flash reflected on my airplane. It startled me as I thought I was too close to some other aircraft. I looked every place in the sky and couldn’t find where the reflection had come from until I looked to the left and the north of Mt. Rainier where I observed a chain of nine peculiar looking aircraft flying from north to south at approximately 9,500 feet elevation and going, seemingly, in a definite direction of about 170 degrees.”

The size and length-of-formation calculation (page 165):

“I observed the chain of these objects passing another high snow-covered ridge in between Mt. Rainier and Mt. Adams, and as the first one was passing the south crest of this ridge the last object was entering the northern crest of the ridge. As I was flying in the direction of this particular ridge, I measured it and found it to be approximately five miles so I could safely assume that the chain of these saucer like objects were at least five miles long.”

The clocked time: “As the last unit of this formation passed the southern most high snow-covered crest of Mt. Adams, I looked at my sweep second hand and it showed that they had travelled the distance in one minute and forty-two seconds.”

The mirage/reflection rejection (page 165):

“A number of news men and experts suggested that I might have been seeing reflections or even a mirage. This I know to be absolutely false, as I observed these objects not only through the glass of my airplane but turned my airplane sideways where I could open my window and observe them with a completely unobstructed view. (Without sun glasses)”

The witness-cross-reference list — Arnold’s own connection of his observation to other contemporaneous reports (page 166):

“Although these objects have been reported by many other observers throughout the United States, there have been six or seven other accounts written by some of these observers that I can truthfully say must have observed the same thing that I did; particularly, the descriptions of the three Cedar City, Utah, Western Air Lines (pilot) employees, the gentleman from Oklahoma City and the locomotive engineer in Illinois, plus Capt Smith and Co-Pilot Stevens of United Air Lines.”

The Pendleton corroboration episode (page 166):

“I quote Sonny Robinson, a former Army Air Forces pilot who is now operating dusting operations at Pendleton, Oregon, ‘What you observed, I am convinced, is some type of jet or rocket propelled ship that is in the process of being tested by our government or even it could possibly be by some foreign government.’”

Arnold’s letter-volume statement: “Anyhow, the news that I had observed these spread very rapidly and before night was over I was receiving telephone calls from all parts of the world; and, to date I have not received one telephone call or one letter of scoffing or disbelief. The only disbelief that I know of was what was printed in the papers.”

The closing complaint about federal inaction (page 167):

“Even though I openly invited an investigation by the Army and the FBI as to the authenticity of my story or a mental or a physical examination as to my capabilities, I have received no interest from these two important protective forces of our country; I will go so far as to assume that any report I gave to the United and Associated Press and over the radio on two different occasions which apparently set the nation buzzing, if our Military Intelligence was not aware of what I observed, they would be the very first people that I could expect as visitors.”

Signed: /s/ Kenneth Arnold, Box 387 (typed as 587), Boise, Idaho. Pilot’s license 333487. Callair airplane, national certificate 33355.

The hand-drawn diagram is preserved on page 167 with annotations: “traveling this way →”, “Top” written inside the shape, ”← They seemed longer than wide, their thickness was about 1/20th of their width”, “side view →”, “Mirror Bright”. Arnold writes (signed underneath the drawing): “They did not appear to me to whirl or spin but seemed in fixed position, traveling as I have made drawing.”

Brown’s Johnson Interview (Section 2 page 168) — 12 July 1947

Brown’s MOIC dated 16 July 1947 documenting the David N. Johnson interview, verbatim opening:

“On 12 July 1947, a call was made at the newspaper office of the ‘Idaho Daily Statesman’, Boise, Idaho. The aviation editor of the paper, Mr. David N. Johnson, was interviewed in regard to how well he knew Mr. Kenneth Arnold of Boise, Idaho, and as to the credibility of any statement made by Mr. Arnold.”

Brown documents that the editor of the paper assigned Johnson to take the newspaper’s airplane and “exhausting all efforts to prove or disprove the probability of flying disks having been seen in the northwest area.” Johnson’s pilot credentials are recorded on the file: “2800 hours of flying time in various types of airplanes up to and including multi-engine aircraft. During part of the war years, Mr. Johnson was the first pilot of a B-29 type aircraft being assigned to the Twentieth USAAF and stationed on Tinian Island, in the Pacific.”

Brown’s evaluative line:

“It is the personal opinion of the interviewer that Mr. Johnson actually saw what he states that he saw in the attached report. It is also the opinion of the interviewer that Mr. Johnson would have much more to lose than gain and would have to be very strongly convinced that he actually saw something before he would report such an incident and open himself for the ridicule that would accompany such a report.”

Signed: FRANK M. BROWN, S/A, CIC 4th AF. Stamped 62-83894-95 ENCLOSURE Confidential.

Johnson’s Sworn Statement — Exhibit B (Section 2 pages 169–171, 173)

Johnson’s notarized statement, opening:

“On the sixth day of July, 1947, I received from James L. Brown, general manager of the Statesman Newspapers, incorporated in Idaho as The Statesman Printing company, an assignment which was in substance: ‘Conduct an aerial search of the northwest states in an effort to see and photograph a flying disc. Conduct this patrol for so long a time as you believe reasonable, or until you see a flying disc.’”

The first-person sighting narrative (page 170) describes Johnson rolling the aircraft broadside, pulling back the plexiglass to avoid distortion, and exposing eight-millimeter motion-picture film with an f.1.9 Eastman camera:

“Upon hearing this response, I turned the aircraft broadside to the object, pulled back the plexiglass covering to avoid any distortion, took my camera from the map case, and exposed about 10 seconds’ duration of eight millimeter motion picture film. During the time the camera was at eye level, I could not see the object because of minuteness of scope introduced by the optical view finder.”

The object’s behavior:

“It then performed a maneuver which looked as if it had begun a slow roll, or a barrel roll, which instead of being completed, was broken off at about the 180-degree point. The object rolled out of the top of the maneuver at this point, and I lost sight of it.”

The CAA radio log timestamp: “The CAA’s log of radio contacts shows my first contact to have been made at 12:17 hours.”

The witness-canvass discipline (page 173): “asking them to describe what they saw, before telling them my story, in order to avoid suggestion or inference of a leading nature” — Johnson interviewing on-the-ground witnesses (UAL Gowen Field side and national-guard side) under blind-canvass protocol he describes explicitly.

Johnson’s notarization (page 171):

“This statement is made voluntarily and freely, in response to the request of Mr. Brown and Captain Davidson, who called on me this morning. /s/ David N. Johnson”

“Subscribed and sworn to before me, a notary public, this 12th day of July, 1947. /s/ Geo. L. Flaherty, Notary public for Ada county Idaho. My commission expires Jan 2, 1949.”

The notarization is the most important procedural data point in the entire cluster: on July 12, 1947 in Boise, both Frank M. Brown and Captain William L. Davidson personally requested and obtained Johnson’s notarized affidavit. Three weeks later they were dead. The file establishes that the agents who would die at Goble Creek had been operating jointly in the field (not just Brown solo) on Hamilton Field 4AF business at the time of the Maury Island invitation.

Brown’s Smith Interview (Section 2 page 174) — 12 July 1947

Captain E. J. Smith of United Airlines, interviewed at Boise Municipal Airport during a 20-minute scheduled stopover. Verbatim:

“Captain Smith reiterated the statements originally made by him to the press as to what he had seen in the late evening of July 4th, when 8 minutes out of Boise on the route to Seattle, Washington. It is the opinion of the interviewer that due to the position Captain Smith occupies, that he, Captain Smith, would have to be very strongly convinced that he actually saw flying disks before he would open himself for the ridicule attached to a report of this type.”

Signed: FRANK M. BROWN, S/A, CIC 4TH AF. Smith is the United Airlines Captain whose July 4 1947 sighting eight minutes out of Boise heading toward Seattle is the core “United Airlines flight” reference in popular Arnold-period UAP literature; this is the FBI-archived Bureau-and-CIC primary-source memo establishing Smith was personally interviewed by Brown eight days after his sighting.

Brown’s Rankin Canvass (Section 2 page 175) — 10–11 July 1947

A negative-result canvass to locate one Richard Rankin in Palm Springs, California. Brown’s procedural log:

“On 10 July 1947, a chech was made at the following locations in Palm Springs, California for the purpose of trying to locate Mr. Richard Rankin: Palm Springs Police Department, Palm Springs Newspaper, ‘The Desert Sun’, Palm Springs Water Company, Southern California Gas Company, Palm Springs Telephone Company, Palm Springs Employment Office, Palm Springs Chamber of Commerce, Royal Palms Hotel, 5 Palm Springs real estate offices, and the City Offices of Palm Springs including waste disposal, water rights, tax records and etc. No record of Mr. Rankin existed in any of the above mentioned offices.”

Postmaster Ryland M. Gorham interviewed July 11. General Delivery records examined: a third-class envelope from “the Gospel Tract Worker, Route 1, Cicero, Indiana,” addressed to Rankin, Palm Springs general delivery, postmarked July 1947, opened with the postmaster’s permission and found to contain “records of a religious nature concerning the sad plight of American non-church goers, the second coming of Christ and etc.” The Superintendent of Mails recalled Rankin’s prior trailer-camp address from approximately two years earlier — Rankin had departed without a forwarding address.

Disposition: “Investigation is continuing in an effort to locate Mr. Rankin and obtain a statement from him.”

The Rankin canvass establishes the cluster’s procedural envelope: Brown was running formal-canvass tradecraft on civilian witnesses at non-military addresses on his own initiative under the 4AF case file, three weeks before he died.

Davidson’s Baker Interview (Section 2 page 176) — 15 July 1947

The first item in the cluster signed by Captain William L. Davidson, AC, OIC CI, 4AF (Officer in Charge of Counter-Intelligence, 4th Air Force) — the same Davidson who would die in the B-25 crash on August 1.

S/Sgt Edward R. Baker, ASN RA 39576378, 467th AAF BU (ORD), Squadron A, Hamilton Field, California — ten years and two months in the Army, twenty-six months overseas in the ETO, ten months in the Air Corps. Baker’s account, as Davidson recorded it:

“S/Sgt Baker stated that on 8 July 1947, he was going to Base Cleaners from his office and was passing along the sidewalk near the barracks of the ORD when he saw five or six men pointing toward the sky, but as he was use to this around an Army Air Base, he paid no further attention to it until a lieutenant and a captain ahead of him stopped and pointed in the same direction. He stated that on glancing up he saw three objects traveling northeast across the sky. Two seemed to be traveling faster than an ordinary flight of P-80s and he estimated the altitude between 9-10,000 feet and approximately 7-10 miles away.”

The rolling-object detail:

“S/Sgt Baker stated that the two objects in the lead appeared to be round and of a very light gray color, while the object in the rear seemed to be either rotating or rolling behind the other two. … The only means he had of identifying it was the fact that it seemed to get brighter and darker as it appeared to roll.”

Davidson’s evaluative footer:

“S/Sgt Baker appears to be intelligent and is a reserved sort of person. He was very reluctant to discuss the subject at first and appeared hesitant prompted by the possibility that he might be ridiculed. He seemed to be honest and sincere in what he stated he saw, and said frankly he was puzzled over the matter.”

Signed: WILLIAM L. DAVIDSON, Capt, AC, OIC CI, 4AF. Stamped 62-83894-95 ENCLOSURE Confidential.

This is the only signed Davidson document in this transmittal — and it is the only signed first-person Davidson UAP-investigation document in the entire 62-HQ-83894 archive prior to his death.

Nelson’s Ryherd Interview (Section 2 page 186) — 5 August 1947

Filed under serial 62-83894-98 in the August 27 follow-up transmittal. Captain William H. Ryherd, ASN 0-66356, assistant operations officer, 415th AAF BU, Building 95, Hamilton Field — instructor pilot in the 415th Training Unit. His account, with student 1st Lt. Ward L. Stewart of 1242 Milvia Street, Berkeley:

“On 29 July at 1450, Captain Ryherd and a student … landed and parked an AT-6 near the hangar, building 59 of the 415th AAF BU. Walking from the aircraft toward reserve operations, and looking westward just over the hangar, Captain Ryherd saw a P-80 flying southward toward Oakland. Above this P-80, at approximately 8,000 to 10,000 feet in altitude, Captain Ryherd saw two flying objects traveling the same direction as the P-80.”

The size and shape:

“He, Ryherd, judged the solid, white, somewhat shiny objects were approximately 15 to 25 feet in diameter. Ryherd stated that he didn’t call them discs due to the publicity these objects have been given, but in shape they were circular, like a ball on the bottom, but not completely round; and Ryherd specifically stated that these objects were not airplanes.”

The formation and speed:

“The first flying object was traveling straight and level; whereas the second was close behind the first, same altitude, only it seemed to be going from left to right and right to left, more or less like a guard in an aircraft formation. Captain Ryherd further stated that the speed of these two objects made a P-80 look as if it was motionless in the air.”

Confirmed silence and absence of vapor/smoke trails over a clear-sky watch all the way to disappearance toward Oakland and the ocean.

Signed: JAMES A. NELSON, Spec. Agt., CIC 4AF. Stamped 62-2938-21 (the SF SAC’s local file number, with cross-reference to serial 62-83894-98).

This is a second qualified-pilot Hamilton Field eyewitness in the same case file to objects that “made a P-80 look as if it was motionless.” Filed three weeks after Davidson and Brown died — the cluster did not stop being added to.

Springer’s Aug 28 Forwarding — Bethel Alaska Signal-Corps Line (Section 2 page 182)

A Hansen-to-Commanding-General-4AF memo dated 19 August 1947, subject “Matters of National Interest,” forwarding an attached letter received from the NCOIC of the Alaska Communication System station at Bethel, Alaska. Signed for the Commanding Officer by Captain SVEND C. HANSEN, Signal Corps, Acting Executive. First Indorsement HQ FOURTH AIR FORCE, Hamilton Field, California, 28 August 1947, signed by DONALD L. SPRINGER, Lt. Colonel, GSC, AC of S, A-2, forwarded to Special Agent In Charge, FBI, U.S. Department of Justice, Room 422, Federal Office Building, San Francisco, California, “Forwarded for your information.”

Stamped received SAN FRANCISCO FBI September 2 1947, file 62-73894-91 (file-number variant on a Bureau cross-reference).

The Bethel Alaska content itself is not preserved in the OCR archive at this page; the routing slip is what is filed in 62-HQ-83894. The artifact establishes that Springer’s Hamilton Field A-2 office was the formal forwarding channel for Alaska Signal Corps UAP intake-from-the-field as of late August 1947, three weeks after Davidson and Brown’s deaths.

SAC SF August 27 Follow-Up Transmittal (Section 2 page 184)

The cover letter establishing the second Hamilton Field cluster transmittal:

“Reference is made to my letter of August 8, 1947, with which there were transmitted photostatic copies of three letters dated August 4, 1947, entitled, ‘Investigation of Flying Discs’. In order to keep the Bureau fully informed concerning this matter, I am enclosing a letter dated July 28, 1947, ‘Unidentifiable Objects’ furnished to me by Lt. Colonel DONALD L. SPRINGER, GSC, A C of S A-2. Enclosed with this letter was a memorandum for the officer in charge written by LAWRENCE R. KING, JR., Special Agent CIC AdC dated July 15, 1947. Lt. Colonel DONALD L. SPRINGER furnished me in person with a memorandum entitled, ‘Incident for AF 1208-I’ dated August 5, 1947, and prepared by JAMES A. NELSON, Special Agent CIC 4AF.”

Stamped serial 62-83894-98, EX-23, RECORDED & INDEXED, SEP 23 1947.

The August 27 letter establishes that Springer hand-delivered (“furnished me in person”) additional CIC paperwork to SAC SF — a continuing in-person liaison between 4AF A-2 and FBI San Francisco that the August 8 1947 letter (one week after Davidson and Brown’s deaths) had already been documenting, and that this August 27 one extends.

Springer’s July 28 Forwarding (Section 2 page 188)

The standalone forwarding memo from Hamilton Field A-2 to Special Agent In Charge, FBI, 111 Sutter Street, San Francisco, dated 28 July 1947, subject “Unidentifiable Objects,” filing file number 4AFDC-1 / 4AF-1208-I, transmitting the 15 July 1947 MOIC information copy.

Signed: DONALD L. SPRINGER, Lt Col., GSC, A C of S, A-2. Stamped received SF FBI JUL 30 1947. Filed at 62-2938-12.

This is the formal hand-off that the SAC SF July 28 transmittal cover (page 159) carries to FBI HQ — Springer-to-SAC-SF is the in-Bay channel; SAC-SF-to-Director is the cross-country channel. The cluster preserves both legs of the routing path.

Why This Matters

The cluster is the systematic counter-record to the popular framing that the FBI ignored Kenneth Arnold’s June 24, 1947 sighting. Within 18 days of Arnold’s sighting, the 4AF CIC had personally interviewed him in Boise, obtained a four-page typed personal narrative, validated his reported distances against aeronautical charts, and filed the Confidential report up the FBI Director’s chain. The Bureau did not investigate Arnold; the AAF did, and the FBI received the report. The popular cultural record collapses that distinction.
It is the only signed first-person Davidson UAP-investigation document in the archive prior to his death. Captain William L. Davidson signed Baker’s interview MOIC (page 176) under his title “OIC CI, 4AF” — Officer in Charge of Counter-Intelligence, Fourth Air Force. Davidson’s agent-evaluation work-product on a UAP case is preserved in the FBI archive in his own hand, signed, dated 15 July 1947, weeks before he died on the Maury Island return flight.
It establishes Brown and Davidson operating jointly in the field on July 12 1947. Johnson’s notarized statement (page 171) names “Mr. Brown and Captain Davidson, who called on me this morning.” The two agents were not just colleagues at Hamilton Field — they were jointly conducting field interviews three weeks before they boarded the B-25 for Tacoma. The Maury Island assignment was an extension of operational tradecraft they had been running together, not a one-off detail.
Springer’s A-2 office is the connective tissue across the entire 1947 4AF UAP corpus. Donald L. Springer’s signature is on this cluster’s covering report (page 160), the July 28 forwarding (page 188), the August 28 Bethel Alaska indorsement (page 182), the August 20 Switzer/Madden cluster transmittal in Section 3 (1947-california-montana-cic), and the September 1947 Rhodes-photographs Hamilton Field action (rhodes-phoenix-photographs-1947) where he authorized Fugate to proceed with FBI Brower in defiance of Hoover’s URGENT teletype prohibition. Springer is the operational constant. The Hamilton Field 4AF A-2 office is the institutional memory of the 1947 federal UAP record.
Brown’s evaluative posture establishes the “I think it was a man-made object” Stapp counterpart for Arnold. Brown’s record on Arnold — “if Mr. Arnold can write a report of the character that he did while not having seen the objects that he claimed he saw, … he should be writing Buck Rogers fiction” — is the AAF’s Frank Brown saying, in writing, signed and Confidential, that Arnold saw what he reported. Same epistemic level as Captain John Paul Stapp’s affidavit at Muroc (muroc-1947-cic-affidavits) — and from a 4AF CIC agent rather than a witness. There is no balancing deflationary CIC voice in this cluster comparable to base-CO Col. Gilkey’s “paper” Muroc statement.
The Brown chart-check finding is operationally extraordinary for the period. “All statements made by Mr. Arnold in regard to the distances involved, speed of the objects, course of the objects and size of the objects, could very possibly be facts.” A 4AF CIC agent independently chart-validated Arnold’s quantitative parameters — 5-mile formation length, sweep-second-hand timing, 25-mile right-angle observation distance, ~9,500 ft altitude — and committed to the file in writing that the geometry was internally consistent with aeronautical charts. The popular framing of Arnold’s report as “uncorroborated eyewitness testimony” elides this CIC chart-validation step.
The Rankin canvass establishes formal-tradecraft civilian-witness work-product procedure. Eleven separate offices canvassed in Palm Springs, Postmaster interviewed, General Delivery envelope examined under postmaster supervision, Superintendent of Mails questioned for memory-recall of trailer-camp residency two years prior. Brown was running federal-investigative-protocol-grade canvass procedure on a single non-military civilian witness whose connection to the case is not even fully reconstructable from the cluster alone — and the canvass is preserved in the Bureau case file. The 4AF was operating with field-investigative resourcing comparable to a major-case Bureau detail.
The 28-day Hamilton Field add-after-Davidson-and-Brown-died record establishes the CIC investigation continued without them. Nelson’s August 5 1947 Ryherd interview (page 186) is filed under serial 62-83894-98 and transmitted by SAC SF to FBI HQ on August 27 1947 — three weeks after Davidson and Brown died. The 4AF CIC’s UAP investigation did not stop with their deaths; it kept producing eyewitness affidavits (Ryherd was the second qualified-pilot Hamilton Field eyewitness) into late August. The institution survived the loss of two agents and continued.
The cluster preserves Arnold’s own pilot-network witness corroboration list in primary form. Arnold’s narrative names “the three Cedar City, Utah, Western Air Lines (pilot) employees, the gentleman from Oklahoma City and the locomotive engineer in Illinois, plus Capt Smith and Co-Pilot Stevens of United Air Lines.” Two of those — Smith and Stevens — are in this same case file (Smith via Brown’s interview at page 174). Arnold’s geographic-distribution-of-pilot-witnesses framing was something he was assembling himself by mid-July 1947; the FBI archive preserves it in Arnold’s own hand.
Arnold names “negative gravity” jet-or-rocket-propelled hypothesis in the file via Sonny Robinson at Pendleton. “What you observed, I am convinced, is some type of jet or rocket propelled ship that is in the process of being tested by our government or even it could possibly be by some foreign government.” — Sonny Robinson, former Army Air Forces pilot operating dusting operations at Pendleton Oregon, quoted by Arnold on the Bureau record. The civilian-engineer UAP-physics-vocabulary corpus pattern (Merchant cosmic-ray, Jones negative-gravity in the cuneo-jones-winchell-followup-1949 case, Gasser atomic-propulsion in the oak-ridge-gasser-atomic-propulsion-1947-1949 case, Pervier slotted-saucer in pervier-tulsa-fbi-agent-corroboration-1950) traces back to its earliest in-archive root in Sonny Robinson’s July 1947 Pendleton remark.

Connections

Open Questions

Section 2 page 172 OCR garbage. The page between Johnson’s sworn statement opening (page 169) and the notarized close (page 171) contains the body text of the affidavit, but the OCR rendered it as nothing but   formatting. Page 173 begins mid-sentence (“asking them to describe what they saw, before telling them my story”), confirming that pages 172 and an earlier part of 173 carry the witness-canvass narrative. The substantive middle of Johnson’s sworn statement — describing what he actually saw on July 9 1947 — is not OCR-recovered. Open candidate for re-OCR with a different model or hand-transcription.
Cedar City Utah Western Airlines, Oklahoma City, Illinois locomotive engineer corroborants named by Arnold are not in this cluster as separate exhibits. Their Bureau-archive status is unknown. Candidate next-pass mining target across Sections 2-6.
Twin Falls Idaho Hedstrom case (Section 2 page 177) is filed under serial 62-83894-96, a separate SAC Butte transmittal of September 2 1947, and is its own substantive case (multi-witness 9:30 PM August 19 1947, ten objects in triangle formation followed by group of 35-50 in formation, observed by three Twin Falls Police Department officers including Detective Richard A. Frazier, M. E. Rountree, and Richard Scott). Candidate standalone source page for next pass.
Captain E. J. Smith / co-pilot Stevens / United Airlines July 4 1947 sighting has only one in-archive interview preserved at page 174 (Brown’s MOIC). The “Incl 7 News Clippings dated 5 July 1947” referenced in Springer’s synopsis is not in the OCR. Possibly recoverable from contemporaneous Idaho Statesman or Boise Capital News archives.
Lt. W. G. McGinty USN Grand Canyon and Lt. E. B. Armstrong Tenth Air Force Lake Mead sightings referenced as Incl 6 are also not preserved in this OCR cluster. Candidate cross-section search target.
“Incident for AF 1208-I” of 5 August 1947 by James A. Nelson referenced in the August 27 SAC SF cover (page 184) is the same Nelson Ryherd interview at page 186, but its file number 62-2938-21 (a separate Bureau case-file series) suggests Bureau cross-indexing of UAP material into other case files in the late summer of 1947. Candidate mining of FBI 62-2938 as a previously-unknown Bureau case file relevant to UAP research, parallel to 62-85557 (surfaced in summary-aerial-phenomena-section-5-1950).
Bethel Alaska NCOIC letter (referenced on page 182) is not preserved in this OCR cluster. The cover memo is preserved; the substantive letter is not. Candidate cross-section search target across Sections 3-10.
Lawrence R. King Jr. CIC ADC memo of 15 July 1947 referenced in the August 27 SAC SF cover (page 184) is not preserved at this OCR location. Candidate cross-section search target.

Quotes Worth Keeping

“It is the personal opinion of the interviewer that Mr. Arnold actually saw what he stated that he saw. It is difficult to believe that a man of Mr. Arnold’s character and apparent integrity would state that he saw objects and write up a report to the extent that he did if he did not see them. To go further, if Mr. Arnold can write a report of the character that he did while not having seen the objects that he claimed he saw, it is the opinion of the interviewer that Mr. Arnold is in the wrong business, that he should be writing Buck Rogers fiction.” — Frank M. Brown, S/A, CIC 4th AF, MOIC dated 16 July 1947, Section 2 page 161. The 4AF CIC’s evaluative posture on Arnold, in writing, signed, Confidential.

“Mr. Arnold is very outspoken and somewhat bitter in his opinions of the leaders of the U.S. Army Air Forces and the Federal Bureau of Investigation for not having made an investigation of this matter sooner.” — Frank M. Brown, ibid., Section 2 page 161. The Bureau’s own contemporaneous record of Arnold’s complaint about federal inaction. Picked up by SAC SF in the transmittal cover (page 159) for the Director’s specific attention.

“if I saw a ten story building flying through the air I would never say a word about it” — Kenneth Arnold, quoted directly by Brown, Section 2 page 161-162. Arnold’s ridicule-fatigue commitment to silence on any future sighting, on the Bureau record three weeks after his June 24 sighting.

“All statements made by Mr. Arnold in regard to the distances involved, speed of the objects, course of the objects and size of the objects, could very possibly be facts. The distances mentioned by Mr. Arnold in his report are within a short distance of the actual distances on aeronautical charts of this area, although Mr. Arnold has never consulted aeronautical charts of the type the Army uses.” — Frank M. Brown, ibid., Section 2 page 161. The 4AF CIC chart-check validation of Arnold’s quantitative parameters.

“On the sixth day of July, 1947, I received from James L. Brown, general manager of the Statesman Newspapers, incorporated in Idaho as The Statesman Printing company, an assignment which was in substance: ‘Conduct an aerial search of the northwest states in an effort to see and photograph a flying disc. Conduct this patrol for so long a time as you believe reasonable, or until you see a flying disc.’” — David N. Johnson, sworn statement opening, 12 July 1947, Section 2 page 169. The contemporaneous Idaho Daily Statesman institutional response to the Arnold story — paying its aviation editor to fly an aerial search until he saw one.

“This statement is made voluntarily and freely, in response to the request of Mr. Brown and Captain Davidson, who called on me this morning.” — David N. Johnson, sworn statement close, 12 July 1947, notarized by Geo. L. Flaherty, Notary Public for Ada County Idaho, Section 2 page 171. The only in-archive notarized record placing Brown and Davidson jointly in the field on a UAP investigation prior to their deaths.

“the speed of these two objects made a P-80 look as if it was motionless in the air.” — Captain William H. Ryherd, instructor pilot 415th Training Unit Hamilton Field, interviewed by James A. Nelson 5 August 1947, Section 2 page 186. The second qualified-pilot Hamilton Field eyewitness in the cluster, filed three weeks after Davidson and Brown died.

“S/Sgt Baker appears to be intelligent and is a reserved sort of person. He was very reluctant to discuss the subject at first and appeared hesitant prompted by the possibility that he might be ridiculed.” — Captain William L. Davidson, AC, OIC CI, 4AF, MOIC dated 15 July 1947, Section 2 page 176. The only signed first-person Davidson UAP-investigation document in the entire 62-HQ-83894 archive prior to his death.

“The thought has occurred to me that the Bureau might desire to have an agent of the Butte Office contact Mr. ARNOLD and explain to him our lack of jurisdiction in such matters.” — SAC San Francisco, Office Memorandum to Director FBI, 28 July 1947, Section 2 page 159. The Bureau’s contemporaneous internal political response to Arnold’s complaint — escalating to the Director the question of whether to send an agent to Boise to “explain” jurisdiction.

“What you observed, I am convinced, is some type of jet or rocket propelled ship that is in the process of being tested by our government or even it could possibly be by some foreign government.” — Sonny Robinson, former Army Air Forces pilot operating dusting operations at Pendleton, Oregon, quoted by Kenneth Arnold in his typed personal narrative, Section 2 page 166. The earliest in-archive root of the civilian-engineer UAP-physics-vocabulary pattern that traces forward through Cuneo/Jones (1949), Gasser (1947-1949), and Pervier (1950).