In 1762, John Duncan and Elizabeth his wife deeded land that had been left to Elizabeth by her father, John Holtzclaw.
I have an autosomal DNA match to Elizabeth's family on AncestryDNA. The posted family tree has what appears to have some errors, but perhaps is correct. He also shows that John Duncan might have been the son of John Duncan and Dinah Bradford who was a granddaughter of John Marr. This would be a second match if true.
John Duncan will, 4 April 1788: Son John 10 shiliings sterling; son-in-law Benjamin Grigsby 5 shillings sterling; son Willis when he arrives to the age of 20 years; all estae, real and personal, to be sold and equally divided “amongst my six children… and my beloved wife Wilkey Duncan”, Moses, Elias, Enoch, Williss, Milley, Lucinda Duncan. Exors: son Mosses Duncan and Charles Duncan. Signed: John Duncan (X); witness: Charles Duncan (X), Cossom Day, Margett Williams (X) [Fauquier Co. Will Bk. 2, pgs. 312-313].
A number of online trees have mistakenly combined this John Duncan with a John Duncan, born 1648 in Scotland, who left a will probated 22 Feb 1725/6 in Westmoreland Co, VA. They are most certainly not the same men. This John Duncan from Scotland was dead before Elizabeth Holtzclaw was even born.
Elizabeth HOLTZCLAW and John DUNCAN had the following children: