Jr has an estimated birth date of between 1781 and 1784 in Beaufort County, North Carolina. He was the son of John Evett Sr
and Frances Dunbar
. John married first (--?--) Warren
, daughter of William Warren
and Jane 'Jenny' Rowe
, between 1803 and 1804 in North Carolina. He married second Sally (--?--) Hudnell
1840 in North Carolina. The death of John was estimated to be between 1845 and 1849 in Beaufort County, North Carolina.
In 1853 his first wife, surname Warren, was referred to as a "deceased sister" in a Warren estate document that also recorded the names of their children, all with the surname Evett.