National Museum of Nuclear Science & History
Greager worked at the 200 West Area at Hanford during the Manhattan Project.
Fred Hughes was a Reactor Operator at the Hanford B Reactor from 1943 through the end of the war. He worked for the DuPont Company, who transferred him from Prior, Oklahoma to Hanford in 1943.
John W. Calkin graduated from Columbia University in 1933. He then earned a Ph.D. in mathematics from Harvard.
Boyd Jones worked for the J.A. Jones Construction Company.