National Museum of Nuclear Science & History
Ambroso Hoelscher was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leonard Czarniecki served as procurement planning and control officer with 9812th Technical Services Unit (Special Engineer Detachment) at Oak Ridge, TN, with the Y-12 Plant.
Benton worked at the 200 West Area at Hanford during the Manhattan Project.
Dorris Young was a staff worker at Los Alamos during the Manhattan Project.