National Museum of Nuclear Science & History
Clifton worked at Los Alamos during the Manhattan Project.
Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. M. Van Petten worked for the Kellex Corporation at the K-25 Plant.
George Adams worked for the H. K. Ferguson Company.
Calvin S. Shepherd worked on the Manhattan Project at Los Alamos, NM and the Trinity Site.
