National Museum of Nuclear Science & History
James Runyan was a staff worker at Los Alamos during the Manhattan Project.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
Kathleen “Kay” (Gavin) Florin was a clerk in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
S. L. Ashburn worked for the Roane-Anderson Company.