The last I can find of him in in 1910 in Buncombe county, with Talitha and his sister Maggie. That is where I would look for their deaths. But they are not in the death certificates that I can find. Unless the handwriting on the death certificate was so bad that the name has been transcribed incorrectly.
However, Maggie seems to be back in Cabarrus county by 1930 and dies in the Cabarrus county home. I cannot make out where she is buried. Since she had lived with her sister Bettie until she died, and then was with Thomas, either all her siblings were dead by then or they were no longer able to support her.
I have checked every published list of Cabarrus and Rowan cemeteries and have not found Thomas or Talitha.
I am at the end of my currently available resources.
When I make another trip to Cabarrus county, I will try to check for marriages.

Good Luck