National Museum of Nuclear Science & History
Joseph “Joe” A. Haaga (1919-1974) was a nuclear engineer who worked on the Manhattan Project. Born in 1919, Haaga graduated from Notre Dame in June 1940 with a B.
Fermin Vigil was a staff worker at Los Alamos during the Manhattan Project.
Sadelle T. Greenblatt was a research assistant in the Instruments Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
R. E. Lee worked for the H. K. Ferguson Company.
