National Museum of Nuclear Science & History
Lester Orlan Keen worked as an engineering draftsman at Hanford during the Manhattan Project. His son, Jack Keen, was a young boy at the time.
Shelby Hill worked for the United States Engineer District Office.
L. L. Redfern worked for the J.A. Jones Construction Company.
Louis Oblich served in the Army at Los Alamos during the Manhattan Project.