Glenn D. Metcalf

R. Webb

F. E. Donoghue

Donoghue worked in the United States Engineer District Office.

H.A. Fettinger

H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Charles J. Ragan

Charles Ragan worked for the United States Engineer District Office.