Dwight Dillinger

T. J. O’Donnell

T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Robert M. Underhill

Robert Mackenzie “Bob” Underhill (1893-1988) was a finance officer for the University of California during the Manhattan Project.

Norris Bradbury

Norris Bradbury (1909-1997) was an American physicist and director of the Los Alamos National Laboratory from 1945-1970.

John D. Johnston