National Museum of Nuclear Science & History
J. Mulacha worked for the Edenfield Electric Company.
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.
M. P. Lafleur worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Edward J. Fredrick was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
