National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
R. Petyko worked for the Roane-Anderson Company.
E. L. Olson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Romero was a staff member at Los Alamos during the Manhattan Project.
E. W. Dickard worked for the Edenfield Electric Company.