National Museum of Nuclear Science & History
WIley Thomas, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Staff Sergeant Edward F. O’Mara enlisted in the U.S. Army in 1942. Because of a blood condition, Army officials determined that he was not fit for combat duty.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.