Westbury on Severn - Gray/Grey

I am looking for Edward Grey and Jane ? marriage

I have found the baptism records for 3 of their children in Westbury on Severn
Edward 1764
William 1767
James 1772

The next Westbury on Severn records back seem to jump to a baptism 1628 Francis and then possibly burials 1607 Mary and 1585 Robert. Any suggestions on where to go next. Thank you.