National Museum of Nuclear Science & History
John H. Petroski served in the 603rd Air Engineering Squadron.
B. B. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
Snyder worked at the 200 East Area at Hanford during the Manhattan Project.
John Ryan was a staff worker at Los Alamos during the Manhattan Project.
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.