Hello,
So glad to get your reply, Mairi! Nice to hear from a cousin, as we are most definitely related then, if you descend from Angus & Mary. As far as I know, our McMillans have 'always' been in Knap, or for a very, very long time anyway. The Uist thing might be a tempting red herring.
Where are you located? I was born in Scotland, lived near Tayvallich, immigrated to Canada as a child, have many relatives still in Argyll, have been back 5 times now, including this past summer. My parents, now in their 80s, are still living and are a wealth of knowledge about the people and the area. I also I have cousin (maybe 4th cousin) who lives in England, who descends from another child of Angus & Mary. He does (or did) a lot of research and has given me quite a bit to share also. I have met him twice now, on visits to Scotland.
How I fit in is this ... John McMillan, s/o Angus & Mary, married Elizabeth Hamilton. (The Hamiltons had come into Argyll from Lanarkshire in the 1850s.) Their daughter, Margaret McMillan, married Dugald McGregor. (He was born in the area, but his parents came from Balquhidder, Perth.) This couple then had a daughter, Eliza McGregor. Eliza's daughter, Marion McGregor, was my maternal grandmother.
I'm digging through my paper notes here and the birth years for the children of Angus & Mary that you have more or less the same, however I have 8 children in my list and Elizabeth/Betsy isn't one of them! Hmmm this is interesting. So I have Angus & Mary married 1807, birth 1811 Margaret, b. 1814 Flora, b. 1816 Angus, b. 1818 Mary, b. 1819 Neil, b. 1823 John, b. 1825 Dugald and b. 1831 Donald. I got all of this from my cousin in England, who was having a paid researcher do it, so I'm willing to bet we don't have all the info. This cousin descends from Neil McMillan who married Betsy Johnston.
We'll get it all sorted out yet!
Mary