# Blue Book Unknowns **URL:** https://uapdiscovery.discourse.group/c/blue-book-unknowns/13.md [Latest](https://uapdiscovery.discourse.group/latest.md) · [Categories](https://uapdiscovery.discourse.group/categories.md) · [Tags](https://uapdiscovery.discourse.group/tags.md) --- ## [About the Blue Book Unknowns category](https://uapdiscovery.discourse.group/t/about-the-blue-book-unknowns-category/131)
**Author:** [@Alejandro](https://uapdiscovery.discourse.group/u/Alejandro)\ **Replies:** 1\ **Last updated:** [May 29, 2025, 7:30am UTC](https://uapdiscovery.discourse.group/t/about-the-blue-book-unknowns-category/131 "2025-05-29T07:30:02Z")
There are over 700 cases the US Air Force could not explain that they collected as part of project Sign, Grudge, and Blue Book. Many of these case are what General John Samford said were reports that came from “credible … --- ## [September 27, 1949 — Sandia Base, NM — Fireballs Seen By Sandia MPs](https://uapdiscovery.discourse.group/t/september-27-1949-sandia-base-nm-fireballs-seen-by-sandia-mps/628)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [September 26, 2026, 11:15pm UTC](https://uapdiscovery.discourse.group/t/september-27-1949-sandia-base-nm-fireballs-seen-by-sandia-mps/628 "2026-09-26T23:15:33Z")
September 27, 1949 — Sandia Base, NM 1:30 and 3:00 a.m. At least five observers at Sandia Base, New Mexico, see fireballs of various colors traveling either in an arc or in tangent to the Earth. \[Eberhart\] Bluebook Doc… --- ## [September 23, 1948 — San Pablo, CA — Strange Object above Bomber](https://uapdiscovery.discourse.group/t/september-23-1948-san-pablo-ca-strange-object-above-bomber/627)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [September 23, 2026, 12:23am UTC](https://uapdiscovery.discourse.group/t/september-23-1948-san-pablo-ca-strange-object-above-bomber/627 "2026-09-23T00:23:44Z")
September 23, 1948 — San Pablo, CA 12:02 p.m. Retired US Army Col. Horace S. Eakins and Sylvester Bentham, located four miles east of San Pablo, California, see a twin-engine bomber aircraft pass low overhead to… --- ## [September 23, 1948 — Santa Fe, NM — Flat Dime On-Edge Observed by Lab Personnel](https://uapdiscovery.discourse.group/t/september-23-1948-santa-fe-nm-flat-dime-on-edge-observed-by-lab-personnel/350)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 23, 2026, 12:07am UTC](https://uapdiscovery.discourse.group/t/september-23-1948-santa-fe-nm-flat-dime-on-edge-observed-by-lab-personnel/350 "2026-09-23T00:07:10Z")
September 23, 1948 — Santa Fe, NM 9:40 a.m. At Los Alamos National Laboratory, New Mexico, a group of people are waiting for an airplane at the landing strip when one of them notices something glint in the sun. It i… --- ## [September 22, 1948 — nr. Turner AFB, GA — Co-Pilot in C-47 Sees Wingless Metallic Object](https://uapdiscovery.discourse.group/t/september-22-1948-nr-turner-afb-ga-co-pilot-in-c-47-sees-wingless-metallic-object/347)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 21, 2026, 10:06pm UTC](https://uapdiscovery.discourse.group/t/september-22-1948-nr-turner-afb-ga-co-pilot-in-c-47-sees-wingless-metallic-object/347 "2026-09-21T22:06:10Z")
September 22, 1948 — nr. Turner AFB, GA 3:30 p.m. USAF Lt. Martin G. Rubisch, Asst. Combat Ops Officer at Eglin AFB, Florida, is the copilot of a C-47 flying from Eglin heading northeast into Turner AFB at 2,000 ft… --- ## [November 7, 1950 — Lakehurst, NJ — Light Makes 5-6 Head On Passes At Navy Plane](https://uapdiscovery.discourse.group/t/november-7-1950-lakehurst-nj-light-makes-5-6-head-on-passes-at-navy-plane/395)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 18, 2026, 1:02am UTC](https://uapdiscovery.discourse.group/t/november-7-1950-lakehurst-nj-light-makes-5-6-head-on-passes-at-navy-plane/395 "2026-09-18T01:02:25Z")
November 7, 1950 — Lakehurst, NJ A military pilot flying a Douglas AD-4Q Skyraider near Lakehurst, New Jersey, engages in a dogfight with a steady white light that he at first mistakes for an aircraft. He gets on its… --- ## [January 30, 1967 — Crosby, ND — White Lozenge-Shaped Object / Hynek DD Example](https://uapdiscovery.discourse.group/t/january-30-1967-crosby-nd-white-lozenge-shaped-object-hynek-dd-example/483)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 11:36pm UTC](https://uapdiscovery.discourse.group/t/january-30-1967-crosby-nd-white-lozenge-shaped-object-hynek-dd-example/483 "2026-09-17T23:36:02Z")
January 30, 1967 — Crosby, ND 8:04 a.m. Commercial pilot Delton Schwanz is with his wife Della and three children 5 miles southwest of Crosby, North Dakota, when they see a bright-white, sharply outlined, lozenge-sha… --- ## [September 18, 1948 — Shreveport, LA — White, Metallic Half-Sphere](https://uapdiscovery.discourse.group/t/september-18-1948-shreveport-la-white-metallic-half-sphere/620)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 10:40pm UTC](https://uapdiscovery.discourse.group/t/september-18-1948-shreveport-la-white-metallic-half-sphere/620 "2026-09-17T22:40:09Z")
September 18, 1948 — Shreveport, LA 5:00 p.m. A draftsman at home near Shreveport, Louisiana, while using high-power binoculars to watch an L-6 aircraft at 10,000 feet altitude at 60° elevation to the southeast trave… --- ## [September 18, 1951 — Hudson Strait, Canada — B-36 Radar Picks up Object Seen Visually](https://uapdiscovery.discourse.group/t/september-18-1951-hudson-strait-canada-b-36-radar-picks-up-object-seen-visually/340)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 16, 2026, 10:07pm UTC](https://uapdiscovery.discourse.group/t/september-18-1951-hudson-strait-canada-b-36-radar-picks-up-object-seen-visually/340 "2026-09-16T22:07:24Z")
September 18, 1951 — Hudson Strait, Canada 10:20 p.m. USAF B-36 radar operator Maj. Paul E. Gerhart and navigator Maj. Charles J. Cheever are flying northwest at 239 mph over the Hudson Strait in northern Canada when… --- ## [September 13, 1966 — Stirum, ND — Domed Object Leaves Traces](https://uapdiscovery.discourse.group/t/september-13-1966-stirum-nd-domed-object-leaves-traces/334)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 12, 2026, 11:21pm UTC](https://uapdiscovery.discourse.group/t/september-13-1966-stirum-nd-domed-object-leaves-traces/334 "2026-09-12T23:21:54Z")
September 13, 1966 — Stirum, ND 7:30 a.m. 11-year-old Randy Rotenberger, near Stirum, North Dakota, sees a silvery domed disc hover about one mile away, approach, then land within 900 feet, making a low-pitched whine… --- ## [September 11 \[12th?\], 1947 — Necker Island — Air Crew Encounters Light That Splits in Two](https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 18, 2026, 12:25am UTC](https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616 "2026-09-18T00:25:30Z")
September 11 \[12th?\], 1947 — Necker Island About 7:58 p.m. Capt. Stanley S. Griffin and 2d Officer Edward B. Polhemus are flying a Pan American airliner from Midway Atoll to Oahu, Hawaii. Just beyond Necker Island, they… --- ## [September 10, 1951 — Fort Monmouth, N.J. — The Fort Monmouth Radar Incident](https://uapdiscovery.discourse.group/t/september-10-1951-fort-monmouth-n-j-the-fort-monmouth-radar-incident/330)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [September 9, 2026, 10:14pm UTC](https://uapdiscovery.discourse.group/t/september-10-1951-fort-monmouth-n-j-the-fort-monmouth-radar-incident/330 "2026-09-09T22:14:25Z")
September 10, 1951 — Fort Monmouth, N.J. 11:10 a.m. At the Army Signal Corps radar center at Fort Monmouth \[now closed\], New Jersey, a student operator demonstrating radar functions to a group of visiting officers pi… --- ## [September 8, 1947 — Logan, UT — Four Couples In Logan See Saucers](https://uapdiscovery.discourse.group/t/september-8-1947-logan-ut-four-couples-in-logan-see-saucers/615)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [September 7, 2026, 10:14pm UTC](https://uapdiscovery.discourse.group/t/september-8-1947-logan-ut-four-couples-in-logan-see-saucers/615 "2026-09-07T22:14:32Z")
September 8, 1947 — Logan, UT 10:30 p.m. Mr. and Mrs. Richard Anderson and Mr. and Mrs. Gaylon Caldwell see about a dozen white or yellowish objects traveling over Logan, Utah, in group formation at high speed to the no… --- ## [September 3, 1965 — Exeter, NH — The Exeter Sighting](https://uapdiscovery.discourse.group/t/september-3-1965-exeter-nh-the-exeter-sighting/614)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [September 3, 2026, 12:37am UTC](https://uapdiscovery.discourse.group/t/september-3-1965-exeter-nh-the-exeter-sighting/614 "2026-09-03T00:37:22Z")
September 3, 1965 — Exeter, NH Around 1:00 a.m. Exeter, New Hampshire, Police Officer Eugene F. Bertrand Jr. comes across a woman parked on State Highway 101. “She was real upset,” he says, “and told me that a red gl… --- ## [September 3, 1947 — Lake Oswego, OR — 12-15 Silver Discs](https://uapdiscovery.discourse.group/t/september-3-1947-lake-oswego-or-12-15-silver-discs/613)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [September 2, 2026, 11:50pm UTC](https://uapdiscovery.discourse.group/t/september-3-1947-lake-oswego-or-12-15-silver-discs/613 "2026-09-02T23:50:59Z")
September 3, 1947 — Lake Oswego, OR 12:15 p.m. Mrs. Raymond Dupuis and two children see 12–15 silver discs maneuvering at a high altitude above Lake Oswego, Oregon. \[Eberhart\] Sources: Brad Sparks, Blue Books Unknowns… --- ## [August 29, 1952 — Colorado Springs, CO — Pilot Reports Three Objects 50ʹ in Diameter](https://uapdiscovery.discourse.group/t/august-29-1952-colorado-springs-co-pilot-reports-three-objects-50-in-diameter/314)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 28, 2026, 10:20pm UTC](https://uapdiscovery.discourse.group/t/august-29-1952-colorado-springs-co-pilot-reports-three-objects-50-in-diameter/314 "2026-08-28T22:20:55Z")
August 29, 1952 — Colorado Springs, CO 8:35 p.m. Civil Air Patrol pilot Carlton A. Magruder sees three aluminum-colored objects with a red-yellow exhaust over Colorado Springs, Colorado. They are 50 feet in diameter … --- ## [August 29, 1948 — Maplewood, OH — Silver Sphere Drops Silvery Substance](https://uapdiscovery.discourse.group/t/august-29-1948-maplewood-oh-silver-sphere-drops-silvery-substance/612)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 28, 2026, 10:04pm UTC](https://uapdiscovery.discourse.group/t/august-29-1948-maplewood-oh-silver-sphere-drops-silvery-substance/612 "2026-08-28T22:04:32Z")
August 29, 1948 — Maplewood, OH 5:30 a.m. Fahy Niswonger, a farmer near Maplewood, Ohio, sees a large silvery sphere rise from a wooded area and hover above his farm, dropping a silvery substance that disintegrates b… --- ## [August 25, 1952 — Pittsburg, KS — The Radio Man on the Highway](https://uapdiscovery.discourse.group/t/august-25-1952-pittsburg-ks-the-radio-man-on-the-highway/306)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 24, 2026, 11:02pm UTC](https://uapdiscovery.discourse.group/t/august-25-1952-pittsburg-ks-the-radio-man-on-the-highway/306 "2026-08-24T23:02:39Z")
August 25, 1952 — Pittsburg, KS 5:50 a.m. William Squyres, a radio station musician at KOAM \[now KKOW-AM\] is driving from his home northeast of Frontenac, Kansas, to the station at Pittsburg. He is in his 1952 Jee… --- ## [August 21–22, 1955 — Hopkinsville, KY — The Kelly-Hopkinsville ‘Goblin’ Case](https://uapdiscovery.discourse.group/t/august-21-22-1955-hopkinsville-ky-the-kelly-hopkinsville-goblin-case/301)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 2\ **Last updated:** [August 20, 2026, 10:23pm UTC](https://uapdiscovery.discourse.group/t/august-21-22-1955-hopkinsville-ky-the-kelly-hopkinsville-goblin-case/301 "2026-08-20T22:23:39Z")
August 21–22, 1955 — Hopkinsville, KY About 7:00 p.m. Billy Ray Taylor goes into the backyard of the Elmer “Lucky” Sutton farmhouse 7 miles north of Hopkinsville, Kentucky, and sees a bright object come from the sout… --- ## [August 19, 1966 — Donnybrook, ND — Border Patrol Agent Flickinger’s UFO Sighting](https://uapdiscovery.discourse.group/t/august-19-1966-donnybrook-nd-border-patrol-agent-flickinger-s-ufo-sighting/298)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 18, 2026, 11:31pm UTC](https://uapdiscovery.discourse.group/t/august-19-1966-donnybrook-nd-border-patrol-agent-flickinger-s-ufo-sighting/298 "2026-08-18T23:31:34Z")
August 19, 1966 — Donnybrook, ND 4:50 p.m. US Border Patrolman Donald E. Flickinger, in the process of taking two prisoners back to Canada, sees a silvery domed disc floating down the side of a hill near Donnybrook, … --- ## [August 19, 1947 — Twin Falls, ID — Luminous “Saucers” Reported Over City](https://uapdiscovery.discourse.group/t/august-19-1947-twin-falls-id-luminous-saucers-reported-over-city/295)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 18, 2026, 10:49pm UTC](https://uapdiscovery.discourse.group/t/august-19-1947-twin-falls-id-luminous-saucers-reported-over-city/295 "2026-08-18T22:49:55Z")
August 19, 1947 — Twin Falls, ID 9:30 p.m. H. H. Hedstrom (executive director of the Twin Falls Housing Authority) and three policemen (Richard A. Frazier, H. E. Roundtree, and Richard Scott) in Twin Falls, Idaho, see a… --- ## [August 15?, 1947 — Rapid City AFB, South Dakota — 12 B-29-Sized Elliptical Objects Seen](https://uapdiscovery.discourse.group/t/august-15-1947-rapid-city-afb-south-dakota-12-b-29-sized-elliptical-objects-seen/292)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 14, 2026, 9:22pm UTC](https://uapdiscovery.discourse.group/t/august-15-1947-rapid-city-afb-south-dakota-12-b-29-sized-elliptical-objects-seen/292 "2026-08-14T21:22:32Z")
August 15?, 1947 — Rapid City AFB, South Dakota 9:30 p.m. Maj. Elmer H. Hammer of the 28th Bombardment Wing at Rapid City Army Air Base \[now Ellsworth AFB\] near Box Elder, South Dakota, sees 12 objects flying at 6,00… --- ## [August 14, 1947 — Placerville, CA — Metallic Object with Smoke Trail](https://uapdiscovery.discourse.group/t/august-14-1947-placerville-ca-metallic-object-with-smoke-trail/610)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 13, 2026, 10:09pm UTC](https://uapdiscovery.discourse.group/t/august-14-1947-placerville-ca-metallic-object-with-smoke-trail/610 "2026-08-13T22:09:57Z")
August 14, 1947 — Placerville, CA 4:00 p.m. Insurance executive Ray A. Switzer and his wife are driving along Cedar Ravine Road about 5 miles south of Placerville, California, when they see a smoke trail. In front of… --- ## [August 14, 1947 — Harmon Field, Guam — Flying Objects in Guam](https://uapdiscovery.discourse.group/t/august-14-1947-harmon-field-guam-flying-objects-in-guam/291)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 13, 2026, 9:57pm UTC](https://uapdiscovery.discourse.group/t/august-14-1947-harmon-field-guam-flying-objects-in-guam/291 "2026-08-13T21:57:25Z")
August 14, 1947 — Harmon Field, Guam 10:40 a.m. Three men of the 147th Airways and Air Communications Service Squadron at Harmon Field, Guam, see two small crescent-shaped objects zigzagging at 1,200 feet. They disap… --- ## [August 13, 1947 — Snake River Canyon, ID — Snake River Case](https://uapdiscovery.discourse.group/t/august-13-1947-snake-river-canyon-id-snake-river-case/609)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 12, 2026, 11:07pm UTC](https://uapdiscovery.discourse.group/t/august-13-1947-snake-river-canyon-id-snake-river-case/609 "2026-08-12T23:07:55Z")
August 13, 1947 — Snake River Canyon, ID 1:00 p.m. Albert Clarence Urie and his two sons Billy and Kenneth (or Keith) see a straw hat–shaped, sky-blue object about 10 feet wide, 10 feet high, and 20 feet long. It has… --- ## [August 12, 1961 — Kansas City, KS — Oval Object w/Fin](https://uapdiscovery.discourse.group/t/august-12-1961-kansas-city-ks-oval-object-w-fin/608)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 11, 2026, 10:39pm UTC](https://uapdiscovery.discourse.group/t/august-12-1961-kansas-city-ks-oval-object-w-fin/608 "2026-08-11T22:39:51Z")
August 12, 1961 — Kansas City, KS 9:00 p.m. College seniors J. B. Furkenhoff and Tom Phipps see a large oval object with a fin extending from one edge to the center, like a sled with lighted car running boards, near Old… --- ## [August 12, 1952 — Cape May, NJ — F-94B Jet Encounters Object Over Delaware Bay](https://uapdiscovery.discourse.group/t/august-12-1952-cape-may-nj-f-94b-jet-encounters-object-over-delaware-bay/288)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 1\ **Last updated:** [August 11, 2026, 10:20pm UTC](https://uapdiscovery.discourse.group/t/august-12-1952-cape-may-nj-f-94b-jet-encounters-object-over-delaware-bay/288 "2026-08-11T22:20:07Z")
August 12, 1952 — Cape May, NJ 1:43 a.m. An Air Force F-94B jet fighter from Dover AFB in Delaware is flying at 20,000 feet when both the pilot and his radar crewman sight a glowing object 45° to their left and at a … --- ## [August 11, 1954 — Yoron-Jima, Japan — S.S. Docteur Angier Close Encounter](https://uapdiscovery.discourse.group/t/august-11-1954-yoron-jima-japan-s-s-docteur-angier-close-encounter/607)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 10, 2026, 10:30pm UTC](https://uapdiscovery.discourse.group/t/august-11-1954-yoron-jima-japan-s-s-docteur-angier-close-encounter/607 "2026-08-10T22:30:41Z")
August 11, 1954 — Yoron-Jima, Japan 8:55 p.m. P. L. Percharde, electrical engineer and assistant manager of the Moeller Shipwrecker Company, of Okinawa, sees a line of blue lights underneath a blue circle with a blac… --- ## [August 7, 1952 — San Antonio, TX — Four 18ʺ UFOs Observed](https://uapdiscovery.discourse.group/t/august-7-1952-san-antonio-tx-four-18-ufos-observed/606)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 6, 2026, 10:08pm UTC](https://uapdiscovery.discourse.group/t/august-7-1952-san-antonio-tx-four-18-ufos-observed/606 "2026-08-06T22:08:49Z")
August 7, 1952 — San Antonio, TX 9:08 a.m. Mrs. Susan Pzuhl (or Pfuhl) observes over San Antonio, Texas, four round UFOs that give off a color similar to white-hot metal. The objects appear to be approximately 18 inches… --- ## [August 5–6, 1953 — Rapid City, SD — The Rapid City / Ellsworth AFB Incident (RV)](https://uapdiscovery.discourse.group/t/august-5-6-1953-rapid-city-sd-the-rapid-city-ellsworth-afb-incident-rv/605)
**Author:** [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\ **Replies:** 0\ **Last updated:** [August 4, 2026, 11:56pm UTC](https://uapdiscovery.discourse.group/t/august-5-6-1953-rapid-city-sd-the-rapid-city-ellsworth-afb-incident-rv/605 "2026-08-04T23:56:20Z")
August 5–6, 1953 — Rapid City, SD Around 8:00 p.m. Ground Observer Corps observer Phyllis Killian spots a UFO in Black Hawk, South Dakota. Soon after, radar at Ellsworth AFB near Rapid City tracks a “well-defined, so… [Next page](https://uapdiscovery.discourse.group/c/blue-book-unknowns/13.md?page=1)