National Museum of Nuclear Science & History
George Tilley was a staff worker at Los Alamos during the Manhattan Project.
Pettengill served in the 393rd Bombardment Squadron.
Williams Helps worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, 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.
