Ah, but on the positive side, after all this, you have Mary's baptism. I know what I was like when I found my 3xgrandmother's baptism after soooo long of searching my MacDonalds in the Highlands...I still look at it and go, I got there!
Just as I by and by, and I have mentioned this to Gordon too...
I did try a few days ago to find mother Catherine's death entry in Scotland, just to confirm her maiden name etc and close off a bit better the line in Scotland....but cannot see it
The only possibility may be a Catherine McLuskey who died a widow/pauper at Barnhill Poor House. No personal details included and age out by some years at 55 in 1872
But that doesn't feel right.
Picking on the more unusual name of Matilda, the youngest, I think she left Scotland after 1871 (was trying to see if her activity could confirm anything with mother). No marriages/deaths showing for her in Scotland. She shows here I think in 1871:
Matilda McLucky 22, Steam Loom Weaver b. Blantyre
Annie Hendry 28, lodger
Address: High Bushyhill, Cambuslang, Lanarkshire
Then I wondered whether this was her also heading off for the US:
Matilda Mccluskey, 22, Scottish. Left from Glasgow for NY on 23 Jul 1873 on the 'Victoria'
McLuskey with all its variants is a hard name always to follow!
I got stuck again after that
Monica