There is one Robert and Isabella Moore, living on Maughold in the 1881 census. His age is given as 61 (hers is 52. Both were born in Maughold. As the census was carried out early in 1881, this would indicate that the Robert born in March would be 62 and the one born in August 61. Children shown are John Robert (31), Emma (27), Edward(25), Joseph (22), James Alfred (19), Daniel (16), Robert Edward(14), Thomas Arnold (12), & Frederick John (10). They were farmers living at Ballabarna House. I do not have access to Isabella Moore's maiden name.