↑ 1.01.11.2 "Public Family Tree", database, RootsWeb (http://wc.rootsweb.ancestry.com : accessed 6 March 2015), Bell County, Kentucky Families, database by Sueann Morrow, entry for ID I086518, Nancy Clark (b. 1838, Ohio), undocumented data updated 17 July 2005.
↑Indiana, Marriage Index, 1800-1941, database and images, Ancestry, 2005 (http://www.ancestry.com : accessed 26 April 2017), Nancy Clark, Indiana; citing Lacking 1828-1, W. P. A., Book: G, Page: 19, Index to Marriage Record 1821-1920, Works Progress Administration, Indiana.
It may be possible to confirm family relationships with Nancy by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Nancy: