I saw that you wrote about Donald Sr. of Craskie. I am very interested in finding out more, as I believe that I am descended from him. My grandmother was Sarah Grant, daughter of Alexander, son of Donald Grant III. Donald was born in South Branch in 1807 (not 1827 as some records say...I believe that this was a transcription error.)
Donald moved to Norfolk, NY, with most of his children and his wife Sarah/Sally in the late 1870s. I have found him and the family in the 1851, 1861, and 1871 census records. In the 1851 records, he was living with his father, Donald, who was born in NY. His father was 75 in 1851. They were RC. On Donald's Norfolk death record, it lists his father as Donald Grant and his mother as Bell McDonell.
I was very excited to see that you are also descended from this line and hope that you might be willing to share some information. Is the Patrick Grant that you list as Donald's g-grandfather, the "Black Peter" of Glenmoriston?