National Museum of Nuclear Science & History
Major Frank Salfingere served in the Army at Los Alamos during the Manhattan Project.
Ralph B. Larsen was a machinist at Los Alamos during the Manhattan Project. His wife, Ruth Anderson, also worked at Los Alamos.
B. P. Ciaccio served in the 509th Headquarters and Base Services Squadron.
Ole G. Landsverk was a member of the health physics team at the University of Chicago Metallurgical Laboratory during the Manhattan Project.