National Museum of Nuclear Science & History
H. M. Bryans worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. E. Carroll worked for the Roane-Anderson Company.
