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- [S3] Birth Certificate.
- [S189] 1930 US Census, Village of Grafton, Ozaukee Co., Wisconsin; 45-8; Sheet 4B; H.93 F.100; Madora Thielk; 3 February 2010.
- [S181] 1910 US Census, Town of Grafton, Ozaukee Co., Wisconsin; 85; p. 17B; h.145 f.151; Medora Last; 2 June 2010.
- [S173] 1920 US Census, Ward 9, Milwaukee, Milwaukee Co., Wisconsin; 121; p.8; h.57 f.97; Dora Thielke; 21 July 2009.
- [S190] 1905 Wisconsin State Census, Midora Last; p.6, Grafton, Ozaukee Co., f.76.
- [S174] 1900 US Census, Town of Grafton, Ozaukee Co., Wisconsin; 16; Sheet 13B; h.262 f.274; Medora Last; 3 March 2010.
- [S252] Wisconsin Births and Christenings, 1826-1926, 9 October 2010; Medora Martha Louisa Last, Batch C00326-6, Source 1305141, Ref item 3 p 495.
- [S176] Obituary - Milwaukee Journal-Sentinel, Walter L Last Obituary; 28 May 1970; Page 3.
- [S339] 1940 US Census, Grafton, Ozaukee, Wisconsin; 45-8; Sheet 11A; Household 219; Madora Thielke; 2 April 2012.
- [S341] Headstone.
- [S5] Marriage Certificate, Ozaukee County, Vol 10, Page 137.
- [S189] 1930 US Census, Village of Grafton, Ozaukee Co., Wisconsin; 45-8; Sheet 4B; H.93 F.100; Arthur Thielk; 3 February 2010.
- [S266] World War II, Draft Registration Cards, 1942, 16 January 2011; Arthur Frederick Thielke; Wisconsin; Serial: U1920.
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