National Museum of Nuclear Science & History
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
Schneider worked at the 300 Area at Hanford during the Manhattan Project.
Helen Schneider was a staff worker at Los Alamos during the Manhattan Project.
Olga Nelson was a staff worker at Los Alamos during the Manhattan Project.
John L. Stiegman served in the First Ordnance Squadron.
