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.
Leon Horton served in the 393rd Bombardment Squadron.
Chellberg worked for Stone and Webster Engineering Corporation.
Hall worked in the United States Engineer District Office.
