Californien, San Francisco, Udlændingekontorets særlige undersøgelsesoptegnelser, 1910-1941

"California, San Francisco, Immigration Office Special Inquiry Records, 1910-1941." Database with images. FamilySearch. http://FamilySearch.org : 14 June 2024. Citing NARA microfilm publication M1388. Washington, D.C.: National Archives and Records Administration, n.d.