National Museum of Nuclear Science & History
William Stephenson worked for the J.A. Jones Construction Company.
Ross worked at the 200 East Area at Hanford during the Manhattan Project.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Addie Saunders was a laboratory assistant in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
James H. Alexander was a staff member at Los Alamos during the Manhattan Project.
