National Museum of Nuclear Science & History
Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
Joseph Hirschfelder was an American physicist. He held doctorates in physics and chemistry from Princeton University.
