Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

John C. Pfeiffer Jr.

Private First ClassTinian Island

Wendover, UT
509th Composite GroupManhattan Project VeteranMilitary Veteran
North Airfield at Tinian Island.

John C. Pfeiffer Jr. served in the 393rd Bombardment Squadron.

Related Profiles

Francis D. Thornhill

Hiroshima Mission

Francis D. Thornhill served as a captain in the 393rd Bombardment Squadron. He was the navigator on the Straight Flush during the Hiroshima mission.

Clifford H. Matthews Jr.

K-25 Plant

Attended Purdue University.

Floyd N. Stewart

Los Alamos, NM

Kenneth Pumphrey

Los Alamos, NM

Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.