National Museum of Nuclear Science & History
R. L. McCormick worked for the J.A. Jones Construction Company.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
M. J. O'Hara worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Beltzner worked at the 100-D Area at Hanford during the Manhattan Project.
