The Maughold 1861 census has:
3 47 Ballaglass Thomas CANNON Head MAR 23 Labourer born Onchan
3 47 Ballaglass Elizabeth CANNON Wife MAR 31 b.Maughold
3 47 Ballaglass Ann CANNON Daughter UNM 7 Maughold
3 47 Ballaglass Ellinor CANNON Daughter 3 Maughold
3 47 Ballaglass Sophia CANNON Daughter 1 Maughold.
Maughold par reg bapts have:
Elizabeth dau of John Roxborough & Jane Kerruish bapt 24 Jun 1827.
1841 Maughold census has:
2 11 53 Pt of Ballakilley John ROXBOROUGH 45 Army pensioner Isle of Man.
[Different household]:
2 21 108 Ballasloe Jane ROXBOROUGH 52 Isle of Man
2 21 108 Ballasloe Elizabeth ROXBOROUGH 13 Isle of Man.
No sign of John Cowell son of John Cowell in Maughold, but if you ask on this board for a search of the 1861 census you might find him in a different parish.
Sue