Her gravestone says Sarah J. Adkins, Dec 18, 1861 - Sep 15, 1905, Wife of B. B. Adkins.
1880 census of Elliott Co., Ky, Martinsburg precinct, enumerated 12 June, lists on p. 20 as family #151:
Adkins, Benj. B., 20, b. Ky NC Ky, farmer; Jane, 19, wife, b. Ky Ky Ky.
There are seven Adkins families on this page.
1900 census of Rowan Co., Ky, Farmers precinct, enumerated 28 June, lists on p. 25A as family #435/442:
Adkins, Beng. B., 39, b. Sep 1860, Ky Ky Va, day laborer; Sarah J., wife, 38, b. Jan 1862, Ky Ky Ky, married 20 years, mother of 7 children, 6 living; H. Eddie, son, 18, b. Aug 1881; Jessie, son, 15, b. Apr 1885; Girtrude, dau, 11, b. Sep 1888; Vestia M., dau, 9, b. June 1890; Rosco, son, 6, b. May 1894; Marvin, son, 3, b. Oct 1896. All children born Ky Ky Ky.
The birthdates are not to be trusted.
3 Most of them are inconsistent with the dates on gravestones, draft records, etc.