National Museum of Nuclear Science & History
Halbrook worked in the United States Engineer District Office.
Robert Mackenzie “Bob” Underhill (1893-1988) was a finance officer for the University of California during the Manhattan Project.
R. B. Williams worked for the Union Carbide & Carbon Corporation.
Before he came to Hanford Sam Campbell had a varied work history, including service with the coast artillery in the Philippines and pipeline construction in South America.
