National Museum of Nuclear Science & History
P. M. Putnam worked for the J.A. Jones Construction Company.
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
L. Z. Dolan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Major Harry D. Riley (1907-1996) worked on the Manhattan Project at Hanford as an engineering officer and chief of services.
