National Museum of Nuclear Science & History
L. F. Preston worked for the United States Engineer District Office.
Smith worked at the 200 West Area at Hanford during the Manhattan Project.
Steven W. Briggs, Jr. served in the 320th Troop Carrier Squadron.
Colonel Franklin Matthias (1908 – 1993) was the officer-in-charge at the Hanford site. Matthias, a civil engineer, had been a close associate of General Groves since the beginning of the Manhattan Project, and was asked to review sites in the West.
Litton worked at the 300 Area at Hanford during the Manhattan Project.
