duncan colquhoun and catherine mcinnes

[heaross]

I'm trying to gt some information on Duncan Colquhoun and Catherine McInnes.Duncan must have died  before the 1841 census but Catherine is on it With the children who are all in their 20's and 30's. She is 85years b.1756, and their address is Corpach Kilmallie Argyll. Can anyone find out anything more about them, I'd be most gratefull.