National Museum of Nuclear Science & History
J. T. Holloway worked for the United States Engineer District Office.
Richard Claassen was a research assistant at the SAM Lab at Columbia University from 1944 to 1946. While there, he built and used fluidic systems to test for unusual leaks in diffuser tubes.
Joseph M. DiJulio served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned as a radar operator on the Up An’ Atom, but did not fly in that plane during the August 1945 bombing missions on Hiroshima and Nagasaki.
Ethel Schwartz arrived as a bride with her husband, Manuel Schwartz, at Los Alamos in 1944. She worked in the office until she became pregnant with her son, Joel Schwartz, who was born there after the bombs were dropped on August 6, 1945.