National Museum of Nuclear Science & History
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
Herbert Pomerance was a research associate at the Chicago Met Lab during the Manhattan Project. Pomerance was transferred to Clinton Laboratories in Oak Ridge, TN on September 1, 1943.
Lester Orlan Keen worked as an engineering draftsman at Hanford during the Manhattan Project. His son, Jack Keen, was a young boy at the time.
