National Museum of Nuclear Science & History
Lee Warren worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Painton worked for Stone and Webster Engineering Corporation.
William Bradshaw was a Mechanical Engineer working for the civilian contractor Tennessee Eastman at the Y-12 Plant in Oak Ridge, Tennessee.
Grace R. Harvey was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.