National Museum of Nuclear Science & History
Charles Weymouth worked for the United States Engineer District Office.
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.
M. A. Obermeyer worked for the J.A. Jones Construction Company.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
