Hi Jane ,
Glad to hear you didn't get wet in Scotland.
Bride district 3, page 2
John Killey head 65 farm lab b Lonan
Mary Killey wife 55 b Maughold
Mary Cleator no relationship given unm 60 b Bride
Mary Killey dau unm 24 house serv b Bride
So no, on various counts, sadly this isn't "your John".
I only discovered the family trees facility on Ancestry fairly recently, and I've seen so much guesswork put out as fact on some trees (and several examples of things which I know for a fact are wrong ) that I use them now with a heavy dose of scepticism.