1861, Peel, district 2, schedule 37, Michael Street
John Watterson, head, married, 41, labourer, Ballaugh
Catherne, wife, married, 41, Ballaugh
Ann Cowin, step daughter, 11, scholar, Peel
Christian, step daughter, 8, scholar, Patrick
Robert Watterson, son, 8, scholar, Patrick
Elinor, daughter, 3, Peel
Amelia, daughter, 1, Peel

My marriage index is very much a work in progress is no where near complete.
The IGI has John Watterson md Catharine Cowin 19 Feb 1857 at German.

Margaret Price Cowin taken from the IGI, Ellinor and Amelia from census.