National Museum of Nuclear Science & History
H. A. McFadden worked for the Roane-Anderson Company.
Spofford G. English was an American chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) and Oak Ridge during the Manhattan Project.
Edwin Jones worked for the J.A. Jones Construction Company.
Diego Leon served in the 393rd Bombardment Squadron.
Secundino Roybal was a staff worker at Los Alamos during the Manhattan Project.
