National Museum of Nuclear Science & History
Ercole E. Motta was a research assistant at the University of Chicago Met Lab. He studied ways to determine the boron content of uranium oxide.
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.
W. E. S. Trenchard worked for the J.A. Jones Construction Company.
Douglas Meigs was a civilian chemical engineer working for H. K. Ferguson, the company that built and operated the S-50 Thermal Diffusion facility at Oak Ridge.
