National Museum of Nuclear Science & History
V. J. McDonald worked for the Comstock-Bryant Electric Company.
Floyd E. Ross served in the radar section of the 393rd Bombardment Squadron.
Blanche J. Lawrence was an African-American research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leonard Czarniecki served as procurement planning and control officer with 9812th Technical Services Unit (Special Engineer Detachment) at Oak Ridge, TN, with the Y-12 Plant.