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.
Leo A. Ortega, Jr. served in the 393rd Bombardment Squadron.
Ellen Watts (1921-2008) was a technician in the Metal Production Group of the Chemistry Division at the Chicago Met Lab during the Manhattan Project.
B. E. Riesdorph worked for the Tennessee Eastman Corporation at the Y-12 Plant.
