Burton E. Helberg

E. L. Jennings

Frank E. Keene

Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Melvin H. Bierman

Melvin H. Bierman served as a sergeant in the 393rd Bombardment Squadron. Bierman was regularly assigned as a tail gunner in the Up An’ Atom, but did not fly in that plane in the August 1945 bombing missions on Hiroshima and Nagasaki.

A. E. Crow