National Museum of Nuclear Science & History
J. E. Mason worked for the Roane-Anderson Company.
Kelleher worked for Stone and Webster Engineering Corporation.
Albert S. Kerns was a mechanical engineer assigned to the SED (Special Engineer Detachment) at Los Alamos, New Mexico.
Myrtle Claire Bachelder was an American chemist and Women’s Army Corps officer stationed in Los Alamos during the Manhattan Project.