Birth Estimate 1784 most likely Washington Co Virginia
Marriage
Marriage Estimate 1820 Tennessee Sarah Herring (aka Sarah Holmes Green-Herring (1790-1873) (presumed daughter of Stephen Herring and Susannah Holmes of NC
No original source records have been located to confirm birth or marriage records. It appears that some erroneous information may have been published, and perhaps republished/reported, making the “actual facts” obscure. Links for Find A Grave and Ancestry Family Trees are provided for reference and convenience only (and are considered unreliable/unproven unless sources are contained within). Independent research should be done before considering as "fact"
↑ "United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MCDB-5SM : 23 December 2020), Sarah Duncan, Robertson, Tennessee, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1830," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XH5W-8WQ : 19 November 2020), John Duncan, Robertson, Tennessee, United States; citing 396, NARA microfilm publication M19, (Washington D.C.: National Archives and Records Administration, n.d.), roll 179; FHL microfilm 24,537.
"United States Census, 1840," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XHT1-6Y4 : 19 December 2020), John Duncan, Robertson, Tennessee, United States; citing p. 197, NARA microfilm publication , (Washington D.C.: National Archives and Records Administration, n.d.), roll ; FHL microfilm .
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DNA Connections
It may be possible to confirm family relationships with John by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with John: