Lester R. Barton

Kathleen “Kay” (Gavin) Florin

Kathleen “Kay” (Gavin) Florin was a clerk in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Virginia Jackson

Raymond P. Biel

Raymond P. Biel served as a second lieutenant in the 393rd Bombardment Squadron. He was the co-pilot of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.

Otto Hillig

Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.