I called out the actual Rushen register this morning whilst working in manx Museum - the John who died is only described as son of Philip - I agree (as outlined in a previous response) that John son of Philip + Joney Clucas is the most likely especially given the birth of Cath/Wm less than a year likely there is always the possibility of two Philips producing children - the actual register is I'm sure a copy out of an older + decayed register (this is mentioned in a couple of places) - the hand (uniform up to this point) changes 1729 and the page format also changes at this time which would appear to show that post 1729 the register reflects contempory events whereas before this date it is subject to the vagaries of copying and possible losses + misreadings