National Museum of Nuclear Science & History
Elsie Harrington was a civilian RO Operator at Oak Ridge, Tennessee from October 1943 to February 1947.
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.
Joe Conner worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Estelle B. Lucas was a laboratory assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.