Married: 18 Nov 1797, Chesterfield, VA
Angelica Epps Cheatham
Source: VA Marriages 1785-1940
1850 FAnnin, Fannin, TX
Parker L. Doss, b. VA, 82, farmer
Anna, b. VA, 68
No Name, female, b. VA, 60
No Name, female, b. VA, 22
No Name, female, b. VA, 14
That's all that I found. I'd look for his death in Fannin County.
You can find Fannin County records at FamilySearch, Records, Catalog
Location: Enter United state, texas, fannin
A list of records will come up and click on whatever you want to see. These are non-indexed records and you'll have to look through them.
Fannin County records are also on microfilm at the Paris Junior College. You can't request them but your local, public library can via inter-library loan. They have deeds starting in 1838.
The Tri-county Genealogical Society
PO Box 107
Leonard 75452 might have more info about him. You can ask them if they have a local Fannin County death index, indexed newspaper death notices and cemetery inventories. Successful Searching!