1870 census of Morgan Co., Ky, Blairs Mill precinct, Bangor P.O., enumerated 23 July, lists on p. 10 as family #76/73:
Law, Marcus, 59, farmer, b. Ky; Sarilda, 39, b. Va; Elizabeth, 23; Simon P., 15; Robert, 13; Malinda, 8; Lavina, 2. All children born in Kentucky. Day, Lavina, 60, b. Va.

Only Lavina is Sarilda’s daughter. The others are children of Marcus’ first wife Mahala Brown.

1880 census of Morgan Co., Ky, Blairs Mill precinct, enumerated , lists on p. 11 as family #90:
Law, Mark, 66, farmer; Zarilda, 42, wife; Malinda, 18, dau; Vina, 12, dau. Asberry, William, 20, boarder, single. All born Ky Ky Ky,

The next household is headed by Mark’s son Robert from his first marriage.