National Museum of Nuclear Science & History
Laura A. Marshall was a laboratory technician in the Health Division at the University of Chicago Met Lab.
McGruder worked for Stone and Webster Engineering Corporation.
Robert Boyd Williams was a Major General in United States Army Air Forces and Commanding General, Second Air Force, headquartered in Colorado Springs, CO.
John Marcy worked for the Kellex Corporation at the K-25 Plant.
Ralph McElroy worked for the Kellex Corporation at the K-25 Plant.