| Sources |
- [S251] Wisconsin Marriages, 1836-1930, 1894; Batch M01482-4; Source 1013993, Ref 3456; Mathias Troka; 22 October 1895.
- [S189] 1930 US Census, Milwaukee, Milwaukee Co., Wisconsin; 40-154; Sheet 4B; h.40 f.50; Mathias Troka; 21 March 2011.
- [S173] 1920 US Census, Milwaukee, Milwaukee Co., Wisconsin; 157; Sheet 19A; h.241 f.363; Mathias Troka; 21 March 2011.
- [S211] World War I Draft Registration Cards, 1917-1918, 21 March 2011; Matthias Michael Troka; Draft Card T, #160.
- [S190] 1905 Wisconsin State Census, Maciej Troka; Milwaukee, Milwaukee Co., Sheet 7, Family 109.
- [S330] Pomeranian Genealogical Association Database - Baptisms, 14 February 2012; Picture 0148; Number 29; Pelplin Diocese Archive, Book W849, Lipusz Baptisms 1860-1880.
- [S271] US Naturalization Record Indexes (1791-1992), Mathias Trocka; T-620.
- [S228] Milwaukee City Directory, 27 March 2011; 1892, p.926; Troka, Matthias, tanner, h. r. 895 Sobieski.
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