National Museum of Nuclear Science & History
S. W. Barnes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. H. Maples worked for the Roane-Anderson Company.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
T. D. Wolfe worked for the J.A. Jones Construction Company.