Hillenkoetter, Roscoe Henry, VADM

 Service Photo   Service Details
13 kb
View Time Line
Last Rank
Vice Admiral
Last Primary NEC
00X-Unknown NOC/Designator
Last Rating/NEC Group
Rating/NEC Group Unknown
Primary Unit
1956-1957, Office of the Naval Inspector General (Naval IG)
Service Years
1915 - 1957
Vice Admiral
Vice Admiral

 Last Photo   Personal Details 

192 kb

Home State
Year of Birth
This Military Service Page was created/owned by Michael D. Withers (Mike), OSCS to remember Hillenkoetter, Roscoe Henry, VADM.

If you knew or served with this Sailor and have additional information or photos to support this Page, please leave a message for the Page Administrator(s) HERE.
Contact Info
Home Town
St Louis, MO
Last Address
New York City, NY

Date of Passing
Jun 18, 1982
Location of Interment
Arlington National Cemetery - Arlington, Virginia
Wall/Plot Coordinates
6 5813-C-1
Military Service Number
Not Specified

 Official Badges 

 Unofficial Badges 

 Military Associations and Other Affiliations
Pearl Harbor Survivor's AssociationWWII Memorial National RegistryUnited States Navy Memorial
  0, Pearl Harbor Survivor's Association
  2021, WWII Memorial National Registry - Assoc. Page
  2021, United States Navy Memorial - Assoc. Page

 Additional Information
Last Known Activity

The National Investigations Committee On Aerial Phenomena was formed in 1956, with the organization's corporate charter being approved October 24. Hillenkoetter was on NICAP's board of governors from about 1957 until 1962. Donald E. Keyhoe, NICAP director and Hillenkoetter's Naval Academy classmate, wrote that Hillenkoetter wanted public disclosure of UFO evidence. Perhaps Hillenkoetter's best-known statement on the subject was in 1960 in a letter to Congress, as reported in The New York Times: "Behind the scenes, high-ranking Air Force officers are soberly concerned about UFOs. But through official secrecy and ridicule, many citizens are led to believe the unknown flying objects are nonsense."
Other Comments:
Not Specified

  1923-1923, USS O-2 (SS-63)

Lieutenant Junior Grade

From Month/Year
- / 1923

To Month/Year
- / 1923

USS O-2 (SS-63) Unit Page

Lieutenant Junior Grade

Not Specified

Base, Station or City
Not Specified

Not Specified
 USS O-2 (SS-63) Details

USS O-2 (SS-63)
  • O Type Submarine:
  • Displacement: 480 tons surfaced, 624 tons submerged
  • Length: 172'4"
  • Beam: 17'6"
  • Draft: 13'3"
  • Speed: 14.5 knots surfaced, 11 knots submerged
  • Armament: 1 3"/23, 4 bow torpedo tubes, 8 18" torpedoes
  • Complement: 33
  • Built at Puget Sound Navy Yard and commissioned 1918; placed in Reserver, 1930; recommissioned 1941

USS O-2, a 521-ton O-1 class submarine built by the Puget Sound Navy Yard, was commissioned in October 1918. After transfer to the Atlantic, she spent nearly a dozen years operating along the East Coast and in the vicinity of the Panama Canal Zone. O-2 was placed out of commission in June 1931 and laid up at the Philadelphia Navy Yard. The National defense expansion of the early 1940s brought her back to active duty. Recommissioned in February 1941, she was assigned to training duty at New London, Connecticut, during most of World War II. In July 1945, with the war with Germany won, USS O-2 was decommissioned. She was sold in November of that year.

Sub-Surface Vessel

Parent Unit


Created/Owned By
ET McPhillips, Thomas, Jr. (SS), ET3 276

Last Updated: May 29, 2021
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