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- [S2532] West Virginia. Putnam County. West Virginia Division of Culture and History, Putnam Co., WV Birth Register, (http://www.wvculture.org/vrr/ :n.d.), Book 1, 47, line 37, Nancy N. Walton, accessed 3 Dec 2025. (Reliability: 3).
- [S2539] South Dakota Department of Health, South Dakota, U.S., Death Index, 1879-1955, ((http://www.ancestry.com : 2004)), accessed 11 Dec 2025), Anna Handke, 1933, Brown County; citing certificate no. 147898. (Reliability: 3).
- [S1241] Find A Grave, Find A Grave, ((http://www.findagrave.com/)), accessed 11 Dec 2025), memorial page for Nancy Ann Walton Wertman (14 May 1861–31 Mar 1933), Find a Grave Memorial ID 203113737; citing Webster Cemetery, Webster, Day County, South Dakota, USA; Maintained by Gaikowski (contributor 49264516). (Reliability: 3).
- [S2544] FamilySearch, Minnesota, U.S., Marriages Index, 1849-1950, ((http://www.ancestry.com : 2011)), accessed 11 Dec 2025), Wertman-Walton, 1879, Fillmore County; citing FHL Film No. 1316805. (Reliability: 3).
- [S2547] South Dakota Department of Health, South Dakota, U.S., Marriages, 1905-2024, ((http://www.ancestry.com : 2005)), accessed 11 Dec 2025), Seamon-Handke, 1907, Clark County; citing Registration Number 18966. (Reliability: 3).
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