1880 census of Bath Co., Ky, Polksville precinct, enumerated 3 June, lists on p. 3 as family #22:
Spence, Jane, 49, farmer, widowed; Nancy E., 25, dau, single; Wollerry, 7, grandson; Spence, William, 28, relationship blank (indicates head of household), 28, works on farm; Liza A., 16, wife; Thomas A., 3, son; George W., 7/12, b. Oct. All born Ky Ky Ky.

Technically, William should have been given his own family number, such as 22/23, or else he should have been listed as a son, with the other relationships relative to Jane. But this census taker seems to have ignored that part of the instructions.

1900 census of Bath Co., Ky, White Sulphur precinct, enumerated 4 June, lists on p. 3A as family #49:
Spence, William, 48, b. Aug 1851, farmer; Anizza, wife, 35, b. June 1864, married 23 years, mother of 10 children, 9 living; Allen, son, 22, b. July 1877; Andrew, son, 17, b. Sep 1882; Lewis, son, 12, b. March 1888; Sarah L., dau, 6, b. Dec 1892; Nannie, dau, 6, b. Feby 1894; Joseph, son, 4, b. May 1896; James, son, 1, b. Feby 1899; Jane, mother, 69, b. June 1830, widowed, mother of 6 children, 2 living. All born Ky Ky Ky.

The preceding household is headed by William’s brother Allen.

1910 census of Bath Co., Ky, Wyoming district, Forge Hill precinct, enumerated 27 April, lists on p. 5A as family #53:
Spence, William, 58, laborer at iron ore mines; Anna E., wife, 46, first marriage for both, married 33 years, mother of 11 children, 10 living; Thomas A., son, 32; William, son, 30; Andy, son, 28; Lewis, son, 21; Sarah L., dau, 18; Nannie M., dau, 16; Joseph R., son, 13; James M., son, 11; Ollie C., son, 5. All born Ky Ky Ky.