What occupation was your Robert? Ours was a joiner. As you can see from the census extracts below Robert, son of Thomas/Isabella Cannell of Ballawillin, was a joiner. I have included the 1851 census to show his wife and some of their children.

Braddan, district 3, page 6, Ballawillin
Thomas Cannell, 50, farmer
Isabella, 50
Thomas, 22
Robert, 20, joiner
Isaac, 12
Ann. 17
Margaret, 14

1851: Braddan, distict 5, schedule 7, Ballamoda
Robert Cannell , head, married, 30, joiner employing 1 apprentice, Braddan
Jane Cannell, wife, married, 27, Braddan
Emily Jane age 5, daughter, Braddan
Isabella Anne age 3, twin daughter, Braddan
Catharine Margaret age 3, twin daughter, Braddan
Robert age 7 months (dies before 1859), son Braddan