National Museum of Nuclear Science & History
Marion L. Arnold was a staff member at Los Alamos during the Manhattan Project.
Robert Keen enlisted in the military on December 28, 1944 and began his training for the U.S. Army Corps of Engineers in January of 1945.
Sloan worked at the 300 Area at Hanford during the Manhattan Project.
Leane Russell was a biologist at the Metallurgical Laboratory in Chicago during the Manhattan Project.