Were John & Mary married on the Island? The only John Chapman I see in the 1861 census (via Brian Lawson's index: 4416 f.124) is a 30 year old unmarried servant with his 79 year old widowed mother, Elizabeth (born Castletown), in the household of what must be his sister Hannah Sayle (also 30) and her husband Thomas, a carter, at 3 Queen St, Douglas (district 2).