My 4x great grandmother was Sarah Neve of Withyham. She married Thomas Cushman on 19 May 1780 at St Michael's. I think she was the dau. of Samuel and Mary (nee Bridger) and would have been b. about 1754. Have you got this far back yet? The name was also spelt Neave and there is a Neaves Farm marked on the map - it's to the SW of the village.