Linda, about thirty years ago I was allowed to read the Pertenhall Church book at the Moravian headquarters in London. I still have my notes of that visit, which include membership lists from 1870 and 1910 (Samuel and Emma Reynolds, living at "The Hoo" and Mary Ann Reynolds, living in Swineshead, the next-door village, are in the 1910 list). And some other anecdotes from the ministers' reports. The church closed in October 1963 after the last minister moved to Woodford Halse in Northants. Get in touch if you'd like to know more.
Peter