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- [S174] 1900 US Census, Ward 14, Milwaukee, Milwaukee Co., Wisconsin; 113; Sheet 17B; h.215 f.312; Martha Zalewski; 1 March 2010.
- [S190] 1905 Wisconsin State Census, Martha Zalewski; Houshold 565, 5th Precint, 13th Ward, Milwaukee, Milwaukee Co., Wisconsin.
- [S232] St. Casimir's Marriage Record, John Strelka & Martham Zalewska; 22 September 1908.
- [S251] Wisconsin Marriages, 1836-1930, 1908; 1014027 - cn 2709; Martha Zalewska & John F. Strelka; 22 September 1908.
- [S176] Obituary - Milwaukee Journal-Sentinel, Martha Strelka, Obituary; 25 November 1930; p.9 col.7.
- [S189] 1930 US Census, Ward 13, Milwaukee, Milwaukee Co., Wisconsin; 40-152; Sheet 10B; h.9 f.12; Martha Strelka; 3 March 2011.
- [S181] 1910 US Census, Ward 13, Milwaukee, Milwaukee Co., Wisconsin; 133; Sheet 13A; h.176 f.254; Martha Strelka; 17 March 2011.
- [S173] 1920 US Census, Ward 13, Milwaukee, Milwaukee Co., Wisconsin; 157; Sheet 13A; h.148 f.227; Martha Strelka; 17 March 2011.
- [S305] Swiete/Schwenten Kirchenbuch, 1733-1929, Baptisms; 1885; Martha Salewski, 12 Sep 1885.
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