National Museum of Nuclear Science & History
R. Petyko worked for the Roane-Anderson Company.
McCoig worked in the 100 F Area at Hanford during the Manhattan Project.
William G. (“Bill”) Hudgins spent most of childhood years in New Mexico. He first heard about a secret wartime laboratory at Los Alamos in 1943, when he was a student at the University of New Mexico.
Clarence Grover Sproul worked as a machinist on the Manhattan Project in Los Alamos, NM from January through June 1945.
R. M. Van Petten worked for the Kellex Corporation at the K-25 Plant.