National Museum of Nuclear Science & History
Robert Thompson was a staff worker at Los Alamos during the Manhattan Project.
Irvin F. Poehls served as a technical sergeant in the 390th Air Service Group.
John Topham worked for the Edenfield Electric Company.
Lewin worked in the 100 D Area at Hanford during the Manhattan Project.
Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
