National Museum of Nuclear Science & History
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
P. G. Kinken worked for the United States Engineer District Office.
Robert E. Holse served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.
