National Museum of Nuclear Science & History
Chellis worked for Stone and Webster Engineering Corporation.
Jas Pryor worked for the J.A. Jones Construction Company.
Hugh T. Richards was an American physicist. He worked on neutron measurements for the atomic bombs at Los Alamos during the Manhattan Project.
P. S. Baker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. M. Toms worked for the Roane-Anderson Company.
