National Museum of Nuclear Science & History
Curtis Nelson worked for the United States Engineer District Office.
Cloyd Marvin had been drafted into the Army, interrupting his education at Haverford University, in 1943 and joined the Special Engineer Detachment as a technician third grade, later being assigned to Los Alamos National Labs in 1947.
Attended Bucknell University.
Robert Holmberg was born in Fort Dodge, Iowa, and began working on the Manhattan Project at the Chicago Met Lab and at Ames Laboratory in Iowa.
Kline worked for Stone and Webster Engineering Corporation.