The History of Mars Hill Baptist Church 1799-1999 is an excellent reference. I also have some family notes that were orginally complied in the 1970s.John and Elizabeth Langford Adams had 12 children: Ariannb.1821 Maryb.1823 Eleanor J. b. 1825 James Gowerb. 1827 William Thomasb. 1829 Nancy Northb. 1831 Sarah Annb. 1833 Bedford Langfordb. 1836 Joseph Asburyb. 1838 Susan Elizabethb. 1840 Martha Matildab. 1842 Amandab. 23 Dec 1844 m. Davis Henrick
The notes I have were sourced in the 1940s from the Henrick Family Bible in the possession (at that time) of Joseph and Henry Lane Henrick.Unfortunately, I do not have any information on John's parents.
I am a descendant of Nancy North Adams and her husband Joseph Epps.Hope this helps!