Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Homer M. O’Callaghan

LieutenantTinian Island

Los Alamos, NMWendover, UT
509th Composite GroupManhattan Project VeteranMilitary Veteran
North Airfield at Tinian Island.

Homer M. O’Callaghan served in the 1st Ordnance Squadron.

Related Profiles

John DoLong

Chicago, IL

John DoLong was a guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Leslie L. Nemeth

Los Alamos, NM

Leslie Nemeth was a staff worker at Los Alamos during the Manhattan Project.

Ray Hughes

Oak Ridge, TN

Hughes worked for Stone and Webster Engineering Corporation.

H. S. Traynor

Oak Ridge, TN

Harry S. Traynor was born in Lexington, Kentucky, on September 4, 1911. Died, March 9, 1998. United States Government official.