National Museum of Nuclear Science & History
M. K. Walker worked for the Fercleve Corporation.
Hensley worked for the Stone and Webster Engineering Corporation.
Anthony J. (“Tony”) Matz was a procurement officer at the University of Chicago Met Lab. He helped obtain, handle, and move many of the materials for Chicago Pile-1 and witnessed it going critical on December 2, 1942.
Archie Massey worked for the Kellex Corporation at the K-25 Plant.
Lambert worked in the 100 B and D Areas at Hanford during the Manhattan Project.