HIs WW I draft registration card, filed 12 Sep 1918, records Henry Sexton, age 43, residence Grange City, Fleming Co., Ky, born 2 May 1875, occupation junk dealer, nearest relative Eliza Sexton, same address.

His death certificate records Henry Sexton, age 44 years 10 months 24 days, born 2 May 1875 in Menifee Co., Ky, died 26 Mar 1920 in Filson precinct, Powell Co., married, farmer, father Enic Sexton, mother’s maiden name Sarrah Donathan, both born in Ky, cause of death tuberculosis of lungs, informant Arther Sexton, Lombard, Ky, burial in Nada, Ky.

I cannot find any Enoch Sexton and Sarah Donathan family. I’m tentatively assigning him to the family of Enoch Sexton and Nancy Jane Donathan, but there is a problem there too, in that he does not appear with the family in the 1880 census. His birthdate is given as May 1878 in the 1900 census; it is possible that even that is too early and that he was really born in 1881.

1900 census of Menifee Co., Ky, district 3, enumerated 5 June, lists on p. 2B as family #30:
Mynhier, Nancy, 46, b. Apr 1854, widowed, mother of 7 children, 4 living; George, son, 16, b. Nov 1883; Ethel, dau, 12, b. Aug 1887; Edith, dau, 4, b. Nov 1895. Sexton, Henry, un, 22, b. May 1878, widowed. All born Ky Ky Ky.

Ancestry.com has interpreted “un” as uncle, but since Henry is 22 years younger than Nancy, it seems unlikely. More likely it stands for “unknown”.

1920 census of Powell Co., Ky, North Fork precinct, enumerated 2 March, lists on p. 2A as family #29:
Sexton, Henry, 44, farm laborer; Lizzie, wife, 39; Arthur, son, 18; Grace, dau, 17; Ella, dau, 15; Leonard, son, 11; Lenza, son, 7; Dorothy, dau, 4 1/12. All born Ky Ky Ky.