National Museum of Nuclear Science & History
Horace Mahorney was a chemical engineer at the Y-12 plant in Oak Ridge, Tennessee. From September 1943 to November 1945, Mahorney was an operator of the mass spectrometer with Dr.
Terry D. Oakley served in the 1027th Air Material Squadron.
Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.
Harold N. Tenzer served in the 603rd Air Engineering Squadron.
