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- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1910; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 24; Page Number: 182.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1910; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 12; Page Number: 213.
- [S9078] U.S., Social Security Applications and Claims Index, 1936-2007.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: Sheffield, Warren, Pennsylvania; Page: 11B; Enumeration District: 0022; FHL microfilm: 2341887.
- [S9114] 1950 United States Federal Census, United States of America, Bureau of the Census; Washington, D.C.; Seventeenth Census of the United States, 1950; Record Group: Records of the Bureau of the Census, 1790-2007; Record Group Number: 29; Residence Date: 1950; Home in 1950: Sheffield, Warren, Pennsylvania; Roll: 560; Sheet Number: 3; Enumeration District: 62-26.
- [S9282] 1940 United States Federal Census, Year: 1940; Census Place: Sheffield, Warren, Pennsylvania; Roll: m-t0627-03618; Page: 2B; Enumeration District: 62-23.
- [S225] Majdan Królewski Parish Records, 1890-1894 (Majdan Królewski), Rozalin year 1893, act 8; Zofia Furtak birth and baptism.
- [S9322] 1920 United States Federal Census, Year: 1920; Census Place: Pittsfield, Warren, Pennsylvania; Roll: T625_1657; Page: 4B; Enumeration District: 164.
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