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- [S192] 1860 US Census, Grafton, Ozaukee Co., Wisconsin; p.32; h.233 f.244; Fritz Thielk; 26 July 2009.
- [S183] 1870 US Census, Town of Grafton, Ozaukee Co., Wisconsin; p. 96A; h.220 f.281; Charles Tilke; 2 June 2010.
- [S173] 1920 US Census, Ward 13, Chicago, Cook, Illinois; 739; Sheet 8A; h.98 f.164; Fred Thilke; 6 February 2012.
- [S200] 1880 US Census, Chicago, Cook, Illinois; 120; Page 2; h.8 f.16; Frederick Thilke; 6 February 2012.
- [S189] 1930 US Census, Ward 28, Chicago, Cook, Illinois; 16-1083; Sheet 2B; h.25 f.50; Fred. Thilk; 6 February 2012.
- [S174] 1900 US Census, Ward 13, Chicago, Cook, Illinois; 409; Sheet 9B; h.89 f.141; Fred Teilke; 6 February 2012.
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