Richard Slattery

James W. Helms

L. Krug

L. Krug worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory 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.

E. Lander

E. Lander worked for the Roane-Anderson Company.