Hi Catherine,
I know a bit about the family, but I don't have the two records you can't decipher. Maybe a seperate post to decipher the handwriting would be a good idea, as it's a bit off this topic.
To Kori's point, Agnes McKerchar is probably the Ann McFarlan in 1755. There are a few examples in the Buchanan registers where it specifically says "McFarlane or McKerrocher", and also "McFarlane or McInstalker".
I think this family is William McAlpine->Donald (two wives)->Daniel
Are you sure about Ross Priory? That's on Lochmond, but not in Buchanan Parish. I assumed Ross was Ross Farm, which is much further north, by Ross Point and Ross Wood. Ross Priory was the seat of the Leith-Buchanans of Ross.
I think their son Donald remained by Ross at Coille Mhor, (Calliemore), William and Jean lived in Aberfoyle Parish. I think Jean's daughter Jean married Andrew McFarlane and they lived at Glengyle with her brother Alexander and her cousin. The significance of this is that Dorothy Wordsworth stayed with them in 1803 and wrote several pages about the family's life there in her Recollections of a Tour Made in Scotland, although she appears to have conflated Jean's brother and cousin;
"Mr. Macfarlane, and his wife's brother, Mr. Macalpine, farmed under the lady of Glengyle, the mother of the young laird, a minor."
BTW, the place names could be Corriegrennan and Ballindeor/Ballendoir/Balendoress/Balliniore/Ballymore. Both were south of Comer, and the latter was the residence of Duncan McKerchar/McFarlan and Anna Mcfarlane.
John.