National Museum of Nuclear Science & History
C. P. Gaither worked for the J.A. Jones Construction Company.
William Steadman was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. H. Sidner worked for the Union Carbide & Carbon Corporation.
John Wickersham was a military policeman and guard at Los Alamos during the Manhattan Project. His duties included patrolling the perimeter of the site on horseback.
