Have looked at my records and there is a marriage of Ann King not Ring to Thomas Toon 12/11/1828 at Gt Casterton. I cannot find any bp for Ann Ring or King in Stretton on the date you givr, the only one is Anne King bp 17/3/1776 Stretton which seems unlikely as Ann is given as born 1797 on 1851,61 and 71 census.
I will keep this infor for a couple of weeks and if you have any more details I will gladly have another look for her or any siblings etc you are looking for.