National Museum of Nuclear Science & History
A. E. Ballard worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harry Webb worked for the J.A. Jones Construction Company.
Trask worked at the 200 West Area at Hanford during the Manhattan Project.
Robert B. Duffield was a Researcher at the Los Alamos National Laboratory from 1943 to 1946. He later worked at the Argonne National Lab.
