National Museum of Nuclear Science & History
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. J. Mitchell worked for the Fercleve Corporation.
M. L. Seay served in the 393rd Bombardment Squadron.
William L. Strohecker (1900-1986) was a civil scientist working at Los Alamos during the Manhattan Project.