National Museum of Nuclear Science & History
T. H. Berry worked for the Edenfield Electric Company.
Isabel Torres worked at the Los Alamos laboratory during and after the Manhattan Project. She commuted from the neighboring community of Santa Cruz, first by truck, then by bus.
MacDonald worked for Stone and Webster Engineering Corporation.
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.