Conal Carswell's paper on the Manx Quakers reviews and much extends earlier studies - I think he examined most sources tho a few more papers of Bishop Barrow have been found but don't seem to add anything (and may well have been seen as he references the Episcopal Wills where they were found - as far as I know his list of names available from Manx sources would appear to be complete - Maughold + Ramsey seem to be the only centre tho the non-Manx name Ottiwell crops up in a Castletown shopkeeper. He only surmises that Jony Corlett nee Cowle + possible sister Margt Corkil als Cowle were Quakers - they don't appear in other lists or courts. And by 1700 Quakers were generally being reabsorbed into the established church