National Museum of Nuclear Science & History
M. E. Gregson worked for the Roane-Anderson Company.
Clarence Buren worked for the Kellex Corporation at the K-25 Plant.
Clyde Fiddler was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Vosmer worked at the 300 Area at Hanford during the Manhattan Project.