National Museum of Nuclear Science & History
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Madeline Sohn was a research assistant in the chemistry division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Knight worked in the 200 West Area at Hanford during the Manhattan Project.
Richard Recker served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
