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- [S64] Missouri Bureau of Vital Records, Missouri Secretary of State, Missouri -- Death Certificates 1910-1974, (https://s1.sos.mo.gov/Records/Archives/ArchivesMvc/ :n.d.), death certificate no. 61-040175 (1961), August Gerteisen, accessed 15 January 2016. (Reliability: 2).
- [S64] Missouri Bureau of Vital Records, Missouri Secretary of State, Missouri -- Death Certificates 1910-1974, (https://s1.sos.mo.gov/Records/Archives/ArchivesMvc/ :n.d.), death certificate no. 14958 (1954), Ida Marie Gerteisen, accessed 15 January 2016. (Reliability: 2).
- [S30] Missouri., Missouri, Buchanan County -- The St. Joseph News-Press NOW Newspaper (Online), (http://newspressnow.com:), "Clara M. Kneib 1913-2012," 18 October 2012, online archives (http://www.newspressnow.com/obituaries/clara-m-kneib/article_c4cfec59-fd43-57bd-95ef-de54ab28e5e6.html : accessed 22 June 2018). (Reliability: 2).
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