National Museum of Nuclear Science & History
Robert B. Rigler served in the First Ordnance Squadron.
Carl Adolphson was a staff worker at Los Alamos during the Manhattan Project.
Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.
Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.