Joseph PARKER and Mary Elizabeth (WILLIAMS) are unmarried in the 1861 census, and say they are married in 1871. It looks like their first child was born in Mar qtr 1863 (Sampson Eastop PARKER - is this correct?), so looking for a marriage possibly between 1861 and 1863.
Henry WILLIAMS born Mar qtr 1856 - is this correct? So a possible marriage for Mary Elizabeth SMITH and John WILLIAMS before then?