Massachusetts, Indeks til passasjerlister over fartøy som ankommer Boston, 1921-49

"Massachusetts, Index to Passenger Lists of Vessels Arriving at Boston, 1921-1949." Database. FamilySearch. https://FamilySearch.org : 14 October 2025. Citing NARA microfilm publication A3453. Washington, D.C.: National Archives and Records Administration, 2007.