Thanks again to all,
Monica, the suggested death of Angus McDonald (Falkirk, 1864) was indeed correct and gave his death as drowning, age 40 with parents Donald McDonald (church officer) and Catharine McLeod. No luck with the marriage and 1841 census has only one fit so far at Hungladder, Kilmuir, Skye with Donald McDonald age 60 and wife Catherine age 40, children: Malcolm 15, ANGUS 15, Ranald 13, Catherine 11 and Alexander 9.
So many McDonalds and McLeods that I now will have to wait until I visit Edinburgh next and trawl through this line, has been one of the most annoying attemps at tracing a line I have come across and a lot of the successes were down to you.
best wishes,
Alan.