John C. Heligenthal

G. D. Bartimus

H. Gerritsen

Gerritsen worked at the 300 Area at Hanford during the Manhattan Project.

Frank P. Stiller

Attended New York University.

Andrew H. MacMahon

Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.