He was a slave owner. He is listed with 17 slaves in the 1850 census. 
James passed away in Athens, Georgia in 1856. Find A Grave: Memorial #74210062, James Dunnahoo, Jackson Street Cemetery, Athens, Clarke County, Georgia, USA. Plot: grave currently unmarked.
Can you add any information on James Dunnahoo? Please help grow his WikiTree profile. Everything you see here is a collaborative work-in-progress.
↑ "Georgia, County Marriages, 1785-1950," database with images, FamilySearch ( : accessed 17 August 2015), James Dunnahoo and Jane Jordan, 20 Nov 1823; citing Marriage, Franklin, Georgia, United States, county courthouses, Georgia; FHL microfilm.
↑ "United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZYV-8WB : 9 November 2014), James Dunahoo, Puryears District, Clarke, Georgia, United States; citing family 6, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
↑ "United States Census (Slave Schedule), 1850 ," database with images, FamilySearch ( : accessed 17 August 2015), James Dunahoo, Puryears, Clarke, Georgia, United States; citing line number 34, NARA microfilm publication M432 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 442,898.
"United States Census, 1820," database with images, FamilySearch ( : accessed 17 August 2015), James Dunnahoo, Lexington, Oglethorpe, Georgia, United States; citing p. , NARA microfilm publication , (Washington D.C.: National Archives and Records Administration, n.d.), roll ; FHL microfilm. the hard copy of this record is incorrect on the Family search Website - he does not appear on p.183. Niether do any of the other individuals attributed to p. 183 - transcriptionist error.
"United States Census, 1840," database with images, FamilySearch ( : accessed 17 August 2015), James Dunahoo, Davis, Clarke, Georgia; citing p. 209, NARA microfilm publication M704, (Washington D.C.: National Archives and Records Administration, n.d.), roll 39; FHL microfilm 7,042.
Will of James Dunnahoo, Location: Athens, Clarke, Georgia; Date: 3 Mar 1853
Banks-Jackson-Maysville Georgia DatabaseUpdated: 2015-06-27 00:49:05 UTC (Sat), rootsWeb World Connect, Contact: Todd Dorsey, 
Thank you to James Dunnahoo for creating Dunnahoo-10 on 3 Aug 13. Click the Changes tab for the details on contributions by James and others.
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It may be possible to confirm family relationships with James by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree:
I have run across some cousins who have all done DNA testing so I started a Dunnahoo One Name Study. Since James here is the father of us all (so far) I hoped you wouldn't mind having the One Name Study Template on his profile. Whether to display the Template is a personal choice. So you can take it off if you'd like. Please leave the Category.
Dunnahoo Name Study
Married: 26 DEC 1798 in Cumberland, Cumberland, Virginia, USA
Children: Mary Polly Dunnahoo b: 01 JAN 1800 in Virginia, USA John Wesley Dunnahoo b: 08 FEB 1806 in Oglethorpe County, Georgia, USA
Both children are mentioned in his will. I am going to add this information to his profile.