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- [S181] 1910 US Census, Town of Grafton, Ozaukee Co., Wisconsin; 85; p. 17B; h.145 f.151; Ella Last; 2 June 2010.
- [S173] 1920 US Census, Town of Grafton, Ozaukee Co., Wisconsin; 106; p. 13B; h.77 f.81; Ella Last; 2 June 2010.
- [S189] 1930 US Census, Port Washington, Ozaukee Co., Wisconsin; 45-12; p. 4B; h.89 f.105; Ella M Didier; 16 June 2010.
- [S176] Obituary - Milwaukee Journal-Sentinel, Walter L Last Obituary; 28 May 1970; Page 3.
- [S181] 1910 US Census, Town of Grafton, Ozaukee Co., Wisconsin; 85; p. 17B; h.145 f.151; Hilda Last; 2 June 2010.
- [S15] Obituary, Ozaukee Press, 18 Jan 1996, Leonard Didier.
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