National Museum of Nuclear Science & History
Julia Mangan worked for the A. S. Schulman Electric Company.
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.
J. E. Sampson worked for the United States Engineer District Office.
J. R. Smith worked for the Roane-Anderson Company.
