Marchamley is in the parish of Hodnet, served by St Luke's Church. St Lukes has a chapelry at Westwood under Redwood. There is also the Chapel of the Epiphany at Peplow built in the 1870's.
I have found family from Marchamley in the Hodnet registers in the 1700's, but the records are very patchy. Many entries you would expect to find are missing - case of bad book keeping?
Sue
PS Have you looked at the Genuki website for information and various areas of the UK?