It is probable that William, Robert and Elisha are actually sons of Rebecca and a previous husband, but since I do not know their father, and they were raised as Stephens/Stevens, I am including them here.

1900 census of Carter Co., Ky, Maddox precinct, enumerated 23 June, lists on p. 19A as family #294/296:
Stevens, Henry, 48, b. Nov 1851, Ky Tenn Ky, farmer; Rebecca J., wife, 39, b. Mar 1861, Ky Ky Ky, married 15 years, mother of 9 children, 8 living; William H., son, 19, b. Mar 1881; Robert L., son, 16, b. Aug 1883; Elisha, son, 13, b. Mar 1887; Nancy, dau, 10, b. Feb 1890; Thurman, son, 8, b. June 1891; Nathan, son, 5, b. Mar 1895; Maggie, dau, 2, b. May 1898. All children born Ky Ky Ky.

1910 census of Carter Co., Ky, Maddox precinct, enumerated 28 April, lists on p. 10B as family #164:
Stevens, Henry, 58, b. Ky Tenn Ky third marriage, married 22 years, farmer; Rebecca, wife, 48, b. Ky Ky Ky, first marriage, married 22 years, mother of 11 children, 10 living; Elisha, son, 22; Thurman, son, 16; Nathan, son, 14; Maggie, dau, 11; Frank, son, 8; Jeff, son, 3. All children born Ky Ky Ky.

In 1920 most of the younger members of this family are living in West Virginia:

1920 census of Kanawha Co., West Virginia, Cabin Creek precinct, enumerated 8 Jan, lists on p. 7A as family #136/142:
Stevens, Nathan, 22, b. Ky Ky Ky, miner at coal mine; Lizzie, wife, 19, b. WVa WVa WVa; Thurmond, boarder, 24, tipple at coal mine; Maggie, sister, 19; Jeff, brother, 13. All siblings born Ky Ky Ky.