Samuel TAYLOR born circa 1844 married Harriet SARTAIN or SARTIN born circa 1846 in the Trowbridge area on 25-12-1870. They are found on the 1871 census in Staverton on the outskirts of Trowbridge, both families come from this area, but I cannot find Samuel and Harriet after the census of 1871.
I suspect they migrated. 2 of Samuels older siblings had migrated to Australia when Samuel was 11.
Do they appear in your tree?