National Museum of Nuclear Science & History
H. L. Longcrier worked for the J.A. Jones Construction Company.
Harold Ninger was a staff worker at Los Alamos during the Manhattan Project.
R. S. Amrien worked for the Union Carbide & Carbon Corporation.
George Graves was a technical advisor at Hanford, and so famous there that he inspired a poem: "We'd called up a tight design/ Hewn strictly to the longhairs' line.