Thomas 45, a farmer, and Elizabeth 46 appear on the 1850 census, Lower Chanceford, with children Jemima Amanda 15, Mary Jane 18 and William Harvey 8, also Hamilton Arbuckle 43 presumably his brother. Property value $1200. Adjacent to John Kilgore farm family.
Thomas and Elizabeth both age 57 are listed on the 1860 census Chanceford however the name is transcribed as "Arbude" though you can see written "Arbucle" with son William Harvey age 17.
Thomas' birth year varies between 1800-1805 which means his age on headstone is likely incorrect.