National Museum of Nuclear Science & History
L. H. Roberts worked for the H. K. Ferguson Company.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.
Sam Sandoval was a staff worker at Los Alamos during the Manhattan Project.
Edgar Sengier (1879 – 1963) was the director of Union Miniere du Haut Katanga. After being warned by British scientists regarding the potential danger were the uranium ore to fall into the wrong hands, Sengier decided to transport half the uranium stockpile from the Congo to the United States in 1940.
F. D. Deats worked for the Roane-Anderson Company.