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- [S694] Rzochów Parish Records, 1793-1947 (Rzochów), Rzochów; 1889; act 3, Mateusz Siewierski birth and baptism.
- [S9348] Hamburg Passenger Lists, 1850-1934, Staatsarchiv Hamburg; Hamburg, Deutschland; Hamburger Passagierlisten; Volume: 373-7 I, VIII A 1 Band 174; Page: 144; Microfilm No.: K_1793.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1906; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 26; Page Number: 73.
- [S9078] U.S., Social Security Applications and Claims Index, 1936-2007.
- [S9116] U.S., World War I Draft Registration Cards, 1917-1918, Registration State: New York; Registration County: Erie.
- [S9322] 1920 United States Federal Census, Year: 1920; Census Place: Buffalo Ward 16, Erie, New York; Roll: T625_1105; Page: 17A; Enumeration District: 122.
- [S9416] New York, U.S., State Census, 1925, New York State Archives; Albany, New York; State Population Census Schedules, 1925; Election District: 01; Assembly District: 05; City: Buffalo Ward 16; County: Erie; Page: 32.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: Buffalo, Erie, New York; Page: 10A; Enumeration District: 0128; FHL microfilm: 2341161.
- [S9282] 1940 United States Federal Census, Year: 1940; Census Place: Buffalo, Erie, New York; Roll: m-t0627-02830; Page: 9A; Enumeration District: 64-220.
- [S9308] U.S., City Directories, 1822-1995.
- [S9072] U.S., Find a Grave® Index, 1600s-Current.
- [S9319] New York, U.S., Death Index, 1852-1956, City of Buffalo; Buffalo, NY; Index to Deaths in Buffalo, New York.
- [S9319] New York, U.S., Death Index, 1852-1956, New York Department of Health; Albany, NY; NY State Death Index.
- [S694] Rzochów Parish Records, 1793-1947 (Rzochów), Rzochów; 1885; act 3, Andrzej Siewierski and Franciszka Wydro marriage.
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