1850 census of Morgan Co., Ky, taken 12 Aug, lists on p. 103, as family #236:
Rolly M. Evans, 27, farmer; Martha F., 26; Mary, 4; Isaac, 2; America, 1. All born in Ky.

The next household is headed by John Evans age 29, with wife Elizabeth Myers. Two households previous is the family of Greenberry Pearce/Pierce age 25 and his wife Susan Brown, but Martha cannot be a sister of Greenberry, because he had a sister Martha Jane Pierce b. ca 1831 who married Henry D. Nickell.

1860 census of Rowan Co., Ky, Morehead P.O., enumerated 2 Aug, lists on pp. 35-36 as family #265/270:
R. M. Evans, 35, farmer; Martha F., 35; Mary D., 14; Isaac J. R. P., 12; A. E. (f), 2; Rolly M., 7; William R., 4; John E. C., 6/12. All born in Ky.

1870 census of Fleming Co., Hillsboro precinct, enumerated 3 Aug, lists on p. 15 as family #97/94:
Evans, R. M., 46, farmer; Martha, 46; Rolle, 18; John, 12; Jesse, 10; David, 4; Lewis, Susan, 22, (black), domestic servant; Lee, 6/12 (black). All born in Ky.

1880 census of Lewis Co., Ky, Quincy precinct, enumerated 12 June, lists on p. 18 as family #167/170:
Evans, John, 21, b. Ky Ky Ky, farmer; Luella, wife, 19, b. Ky Ohio Ky; Evans, Rolley, 56, b. Ky Penn Ky, farmer; Nannie, 26, wife, b. Ky Ky Ky; David W., 14, son, b. Ky Ky Ky.

Two households above is Isaac Evans, age 32, with wife Martha age 27 and daughter Lucy A., age 9.