National Museum of Nuclear Science & History
Mattie was a staff member at Los Alamos during the Manhattan Project.
Joseph Leopold worked for the Kellex Corporation at the K-25 Plant.
Howard R. Kratz (1916-2013) was a nuclear physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Wayne Doty served in the 1st Ordnance Squadron.
