National Museum of Nuclear Science & History
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.
Louise Richter was a staff worker at Los Alamos during the Manhattan Project.
Frank Pratt worked for the J.A. Jones Construction Company.
Argersinger worked for the Stone and Webster Engineering Corporation.
