National Museum of Nuclear Science & History
Joe Langston worked for the J.A. Jones Construction Company.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Jacob Epting worked as a carpenter in Oak Ridge, TN from November 1942 to October 1943. While Epting assumed he was building a hospital, he was never formally told about the project he was working on.
Hood worked at the 200 West Area at Hanford during the Manhattan Project.