National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
D. M. Ellett is a mechanical engineer who joined the Manhattan Project after the end of World War II.
Albert Thompson was a military doctor stationed at Oak Ridge, Tennessee in 1945. Thompson had served in the European Theatre of the war prior to going to Oak Ridge.
Harold F. Lindau served in the 393rd Bombardment Squadron.