National Museum of Nuclear Science & History
J. P. Underwood worked for the Roane-Anderson Company.
Duke worked for Stone and Webster Engineering Corporation.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. F. Hutchinson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
