National Museum of Nuclear Science & History
Alexander worked at the 100 D Area at Hanford during the Manhattan Project.
Vosmer worked at the 300 Area at Hanford during the Manhattan Project.
Dorothea Sacher was a non-techical staff worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Vanstrum began working on the Manhattan Project soon after receiving his engineering degree from the University of Minnesota.