Title: Navigator brothers
Subjects: Correspondence, Canada, Récits personnels canadiens, Navigateurs aériens militaires, Military Flight navigators, Biographies, Canada. Aviation royale, Guerre mondiale, 1939-1945, Canadian Aerial operations, Correspondance, World War, 1939-1945, Opérations aériennes canadiennes, Canadian Personal narratives, Biography, Canada. Royal Canadian Air Force
Places: Canada
People: Alfred Chalmers (1921-1944), John West Chalmers, John W. Chalmers (1910-1998)