National Museum of Nuclear Science & History
W. H. Pickett worked for the United States Engineer District Office.
Spofford G. English was an American chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) and Oak Ridge during the Manhattan Project.
J. O'Conner worked for the Midwest Piping and Supply Company.
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.
Henry Warwick worked for the A. S. Schulman Electric Company.