National Museum of Nuclear Science & History
M. A. Obermeyer worked for the J.A. Jones Construction Company.
D. R. Keyes 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.