Thanks Frances.
I think, though, that Thomas was still alive in 1851 as he is on Braddan census with Isabella at the same place, Ballawillin as he was in 1841. But by 1861 Isabella was a widow still at Ballawillin Braddan.
Do you know if BL's burials include those at St Luke's? It is a thought that maybe Thomas is there?
Robert Thompson was living with his grandmother in 1861 at Ballawillin. That is why I am fairly sure that her daughter Margaret married #1 Robert Thompson and #2 John Kewley - she married Robert Thompson as Margaret Cain and she married John Kewley as a widow Margaret Thompson and her father is named as Thomas Cain.