National Museum of Nuclear Science & History
M. C. Labarr worked for the Kellex Corporation at the K-25 Plant.
B. Roswell Russell worked in the Health Group at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. Q. DuPont worked at the 300 Area at Hanford during the Manhattan Project.
Philip C. McKenna was a laboratory assistant the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.