Thomas was not listed as son of Honorias in the book of Powell Families of Virginia and the South.
He and his brother, Simon, marched with Gen George Washington in the campaign to take Ft Duquesne (present site of Pittsburg, PA) from the French in 1758, Thomas being under William Byrd, Simon under Capt Hogg.
1770s South Carolina
Orange Co, VA
Virginia Census, 1607-1890:
Name: Thomas Powell
County: Orange County
Township: 09 00
Record Type: Continental Census
Database: VA Early Census Index
1783 St Thomas' Parish, Orange Co, VA, was his residence when he gave his consent for son, Ambrose, to marry.
1785 Orange Co, VA, he was still living there at tax time that year.
1789 Clark Co, KY. He was listed in the 1795 census and his daughter, Elizabeth was married there in 1794.
1/11/1790 Fayette Co, KY. Thomas and son, Ambrose, were listed on the tax list this date and both again in 1791 and 1792.
1800 Clark Co, KY. Thomas and 3 sons, Ambrosse, Simon, and Thomas, Jr, were taxed in this county.
10/17/1808 Thomas was exempted from county taxes (levy) due to this age and infirmities. He died a few months later.
1809 Estill Co, KY. His estate was settled there. He may have been living with relatives in his old age, perhaps son, Ambrose.
2/1809 Thomas, Jr, and son-in-law Micajah Hall, were appointed administrators of his estate by the Court. An inventory was ordered on 2/12/1809.