National Museum of Nuclear Science & History
A. L. Crawford worked for the J.A. Jones Construction Company.
T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Daniel Mullane worked in Los Alamos from 1943 to 1945 as a technician. He helped develop a source holder for the uranium gun-type bomb before moving back to Detroit after the war.
Pfeiff worked in the 200 West Area at Hanford during the Manhattan Project.
