National Museum of Nuclear Science & History
John A. Russo served in the First Ordnance Squadron.
Twohey worked for Stone and Webster Engineering Corporation.
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”).
Richard Strickland was a staff worker at Los Alamos during the Manhattan Project.
