F. O. Hiser

R. B. Chalfant Sr.

Edward Littleton

Edward Littleton was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Helen J. Arson

Helen J. Arson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Ernest C. Burns

Ernest C. Burns served in the 393rd Bombardment Squadron.