National Museum of Nuclear Science & History
R. L. Fellers worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Calkins worked at the 200 West Area at Hanford during the Manhattan Project.
Palmer worked in the 100 F Area at Hanford during the Manhattan Project.
Bert Tolbert joined the Manhattan Project in 1944 while completing his PhD in Chemistry from the University of California at Berkeley.