National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
Bowen worked at the 100-B Area at Hanford during the Manhattan Project.
Stewart W. Williams served as a 1st lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.