National Museum of Nuclear Science & History
Zen B. Portwood worked for the J.A. Jones Construction Company.
W. A. Denbrock worked at the 100-B Area at Hanford during the Manhattan Project.
Pechar worked in the 300 Area at Hanford during the Manhattan Project.
Marilyn Hanna was trained as a clerk typist, and worked for the Manhattan Project in Oak Ridge and later for the Security and Patent divisions in Washington, DC.
