National Museum of Nuclear Science & History
Ruby Munroe was a staff worker at Los Alamos during the Manhattan Project.
Hirst worked at the 100-D Area at Hanford during the Manhattan Project.
Leland Nelson worked for Clinton Laboratories at the X-10 Reactor.
W. H. Jennens worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Vanstrum began working on the Manhattan Project soon after receiving his engineering degree from the University of Minnesota.