National Museum of Nuclear Science & History
C. L. Stewart worked for the Union Carbide & Carbon Corporation.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
George F. Popp served in the 603rd Air Engineering Squadron.
Aylworth worked in the United States Engineer District Office.