(Not my families; I have no additional information.)
Nancy Jane Dunbar appears in the 1850 Russell County census (District 2, household # 152) as the 17-year-old daughter of John (age 53) and Elender (age 54) Dunbar.* Nancy's older siblings were Ruben, James, Silas, & Lettice Dunbar; her younger sibs were Mary & Joseph Dunbar. (Nancy & Ahart's marriage record states they were married at John Dunbar's.)
(* From Adair County Ky. marriage records: John Dunbar, son of Reuben, married Eleanor Brown, daughter of Elias, Feb. 3, 1818.)
Ahart S. Hughes also appears in the 1850 Russell County census (District 2, household # 236) with whom I believe was his mother, step-father, and several brothers. The household members were Isham Bowling (49), Julian Bowling (female, 49), and six people with the Hughs (name spelled as found) surname: Albert (20), Ahart S. (18), Cyrenus W. (15), Abner (13), Spenser S. (11) and Sanders Boy [sic](9) Hughs. (Quite possibly, Sarah Hugh(e)s who married Fielding Coffey in 1847 was Ahart's older sister. Another possible sibling was Thomas Hughs who in 1850 was 24 and lived two households away from the Bowling-Hughs family.)
In the Russell County Administrators' Bond Book 1, page 54, is the notation that on May 13, 1844, Julian Hughs (spelled as found) was appointed administrator of the estate of Thomas Hughs. The bondsmen were James Hughs and Joseph Wilson.
In the Russell County loose marriage records is a bond for the marriage of Isham Bowlin and Julian(a) Hughs. The bond was dated Dec. 11, 1848; the bondsman was Will S. Patterson.