National Museum of Nuclear Science & History
Zen B. Portwood worked for the J.A. Jones Construction Company.
Frei worked for Stone and Webster Engineering Corporation.
Gosline worked at the 200 West Area at Hanford during the Manhattan Project.
A. W. Naylor worked for the Kellex Corporation at the K-25 Plant.
Gibson worked at the 300 Area at Hanford during the Manhattan Project.