National Museum of Nuclear Science & History
Frank Vaughan was a research associate at the Chicago Met Lab during the Manhattan Project.
George O'Connell worked for the H. K. Ferguson Company.
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.
Marle Velde worked for the Kellex Corporation at the K-25 Plant.