National Museum of Nuclear Science & History
H. C. Seward worked for the Roane-Anderson Company.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
Hart worked at the 300 Area at Hanford during the Manhattan Project.
F. J. Ward worked for the J.A. Jones Construction Company.
H. G. Singleton worked for the Roane-Anderson Company.
