National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Haines worked at the 100-B Area at Hanford during the Manhattan Project.
J. E. Archer worked for the H. K. Ferguson Company.
Patricia Lear was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Rose Pingel was a staff worker at Los Alamos during the Manhattan Project.
