Bath Co., Ky marriage records list the marriage on 14 July 1857 of William Purvis and Martha George Otis.

1860 census of Bath Co., Ky, Owingsville P.O., enumerated 14 July, lists on p. 118 as family #852:
William Pervis, 24, farmer; Martha, 21; Margaret, 2; Saml Pervis, 30, farmer; Cynthia, 30; Allen, 13; Thomas, 11; Rachel, 8; Mary, 6; Charles, 2; Samuel, 1. All born in Kentucky.

This family appears twice in the 1870 census:

1870 census of Bath Co., Ky, Sharpsburg precinct, enumerated 8 June, lists on p. 11 as family #75:
Purvis, Wm, 34, farm laborer; Martha, 33; Malissa M., 15; Thomas Bell, 9; Elizabeth, 7; Joseph, 4; Laura, 6/12. All born in Kentucky.

1870 census of Bath Co., Ky, White Sulpher precinct, enumerated 1 June, lists on pp.1-2 as family #7:
Purvis, Wm, 33, farm laborer; Martha, 32; Malisy, 13; Margarette A., 11; Thomas, 9; Elizabeth, 6; Joseph F., 4; Louisa, 6/12. All born in Kentucky.