Manx Genealogy

Collister & Cannell

I'm revisiting my historical Collister family after quite a long break and have found the point where I was presumably stuck before. I'm fairly confident about the links that take me back to John Collister born about 1777, died 20 Nov 1820 and buried in Santon, who married Eleanor Cannell (abt.1775-1849 Santon) 6 Sep 1801 in Malew Children born in 1802 and 1804 were Christened in Malew, those from 1811 in Santon.

Does anyone have any hints of how to get any further, and find their parents or other details?