National Museum of Nuclear Science & History
E. S. Ryan, Jr. worked for the Poe Piping & Heating Company.
W. G. Butler worked for the J.A. Jones Construction Company.
Roger Hildebrand is an American physicist and Manhattan Project veteran. He is the S.K. Allison Distinguished Service Professor, Emeritus, at the University of Chicago and is affiliated with the Enrico Fermi Institute.
Muldrew worked in the 300 Area at Hanford during the Manhattan Project.
Jones worked at the 100-F Area at Hanford during the Manhattan Project.