↑ "Tennessee, County Marriages, 1790-1950," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XZWK-L52 : 23 December 2016), Marvel Duncan and Mary Kirkpatrick, 29 Apr 1830; citing Blount, Tennessee, United States, Marriage, p. see next image, Tennessee State Library and Archives, Nashville and county clerk offices from various counties; FHL microfilm 2,073,595.
↑ 1850; Census Place: Chattanooga Valley, Walker, Georgia; Roll: M432_85; Page: 437A; Image: 319 Certainty: 3
↑ United States. Census Place: Cane Creek, Walker, Georgia; Roll: M653_139; Page: 717; Image: 180; Family History Library Film: 803139 Certainty: 3
↑ "United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCQM-82D : 12 April 2016), Hugh L Duncan, Georgia, United States; citing p. 21, family 172, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 545,679.
It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her 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 Mary: