Hi Sally
OK, I'm just trying to build up a picture of the families before I go searching in the croft histories.
It looks to me now like the McKays almost certainly left Uist before the 1841 census.
From 1880 Canadian census:
@ Ball's Creek, Cape Breton, NOva Scotia:
Angus McKay, Married, Male, Scottish origin, 72 yrs, b. Scotland, Farmer
Catherine McKay, Married, Female, Scottish origin, 64 yrs, b. Scotland.
Mary McKay, female, Scottish origin, 40 yrs, b. Nova Scotia (so not Scotland as we thought)
Charles McKay, male, Scottish origin, 33 yrs, b. Nova Scotia, Farmer
David McKay, male, Scottish origin, 21 yrs, b. Nova Scotia, Farmer
Kate McKay, female, Scottish origin, 15 yrs, b. Nova Scotia
Kate McKay, female, Scottish origin, 5 yrs, b. Nova Scotia (probably a grandchild)
Ann McKay, female, Scottish origin, 28 yrs, b. Nova Scotia
John McKay, male, Scottish origin, 26 yrs, b. Nova Scotia
Jessie McKay, female, Scottish, 22 yrs, b. Nova Scotia
The Fergusons are also @ Ball's Creek, Cape Breton in 1881:
Alex Ferguson, Married, Male, Scottish Origin, 64 yrs, b. Scotland, Farmer
Flora Ferguson, Married, Female, Scottish Origin, 66 yrs, b. Scotland
(to save my typing, all children below are b. Nova Scotia and classed as Scottish origin)
Mary Ferguson, female, 35 yrs
Donala Ferguson, female, 29 yrs
Alex Ferguson, male, 27 yrs
Sarah Ferguson, female, 25 yrs
Millie Ferguson, female, 40 yrs (could be a daughter in law, and the following two children could be hers - grandchildren - all conjecture at this point)
John Ferguson, male, 12 yrs
Willie Ferguson, male 5 yrs
Charolet Andrews, female, English origin, 55 yrs b. Nova Scotia, Farmer.
So, what the above lead us to believe:
1. As you thought, all four parents were born in Scotland. But we only have word of mouth information at the moment to say that this was North Uist.
2. The McKay family almost certainly left Uist before the 1841 census.
3. The Ferguson family, at this stage, could still be in Scotland for the 1841 census. In fact Alexander and Flora may not even be married by then. The first Ferguson child birth we have at the moment is Mary c.1846 in Nova Scotia.
I'm going to go now and have a further look at the 1841 in Scotland to make sure I've not missed anything, then I'm going to have a trawl through the croft histories to see what I can find.
Some other info from 1881 and forward in case you don't have it.
1881 @ Lingan, Cape Breton
NEIL McKAY, Married, Male, Scottish Origin, 33 yrs, b. Nova Scotia, Miner
Margt McKay, Married, female, Scottish Origin, 32yrs, b. Nova Scotia
Angus, 10 yrs
James, 8yrs
Kate, 6yrs
Jessy, 5yrs
Alexr, 2yrs.
Looks like Neil married Margaret McKenzie on 03 Apr 1869 @ Glace Bay, Cape Breton. She was b. 1849 @ Christmas Island, Cape Breton of Scottish origin (family originally from Barra, which is a beautiful small island south of the Uists.). None of this information is as yet confirmed.
1891 census Ball's Creek, Cape Breton
DAVID McKay, now age 32, Farmer, is married to
Mary, age 20, b. Nova Scotia (both parents also b. Nova Scotia) and they have a child
Catherine, age 2 months.
Right off to have another go before I have to go out for a couple of hours.
Cheers
Ellen.