D. H. Collins

Joseph E. Draley

Joseph E. Draley was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Francis Bernard Donlan

Francis Bernard “Bernie” Donlan was an American photographer and a clerk at the Chicago Met Lab during the Manhattan Project.

A. C. Beem

Frank Marisco

Frank Marisco worked for the H. K. Ferguson Company.