National Museum of Nuclear Science & History
W. J. Williams worked for the United States Engineer District Office.
Joe L. Filichia served in the 603rd Air Engineering Squadron.
Hinkson worked at the 300 Area at Hanford during the Manhattan Project.
Philip C. Leahy was a Major in the United States Army. During World War II, he was placed in charge of establishing a domestic uranium procurement program for the Manhattan Project.