Cannot find any marriage for Sarah Ann on freeBMD.
Hi Greenamber, this is probably the marriage you are looking for
June Q 1870 Pontefract, 9c 74
Samuel Walton & Sarah Ann Halton on same page.
Parish record
Marriage. Castleford, All Saints, Yorkshire, 23 May 1870
Samuel Walton, bachelor, age 21, Book Maker, father Samuel Walton, blacksmith.
Sarah Ann Halton, spinster, age 18, father William Halton, cloth press setter.
Witnesses: John Clarkson, William Harrison.