National Museum of Nuclear Science & History
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
Leon O. (Tom) Morgan was an American chemist who worked on the Manhattan Project and co-discovered the element Americium.
E. O’Henry worked for the United States Engineer District Office.
Arthur L. Conkle served in the 393rd Bombardment Squadron.