National Museum of Nuclear Science & History
H. R. Pancoast worked for the Comstock-Bryant Electric Company.
W. J. Williams worked for the United States Engineer District Office.
C. G. Plomasen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.