National Museum of Nuclear Science & History
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.
R. Shone
Pfeiff worked in the 200 West Area at Hanford during the Manhattan Project.
Helen Nemeth was a staff worker at Los Alamos during the Manhattan Project.
