National Museum of Nuclear Science & History
E. C. Harshbarger worked for the Roane-Anderson Company.
John M. “Jack” Jamison Jr. graduated from Grove City College with a B.S. in Chemical Engineering in June 1944.
Bert Tolbert joined the Manhattan Project in 1944 while completing his PhD in Chemistry from the University of California at Berkeley.
Frank Alvidnes was a staff worker at Los Alamos during the Manhattan Project.