National Museum of Nuclear Science & History
John F. Loomis served in the 603rd Air Engineering Squadron.
George Mallinckrodt was a physicist at the Manhattan Project’s Los Alamos, NM facility. He also worked at Argonne National Laboratory, the successor of the University of Chicago’s Metallurgical Laboratory (“Met Lab”).
Lawrence H. Johnston was an American physicist. After receiving his bachelor’s degree in physics from the University of California, Berkeley in 1940, Johnston followed his mentor Luis Alvarez to MIT.