National Museum of Nuclear Science & History
W.B. Shank was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
Jas Penny, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.