"repeating:
Alexander is shown as 61 on the 1900 census as married to a lady named Catherine aged 48
It gives his birth as Feb 1839; 57 years in USA; immigrated 1843"
This is a dry well I have worn out. There are no tracks through Canada of Alexander Blair of the right age. There is no suggestion anywhere in my family that Alexander (1837-1903) ever had any connection to Ireland... He was illiterate, could barely sign his name. There is no hint of any other relative in or around Depeyster, Oswegatchie, Heuvelton or for that matter, St. Lawrence County. I have read mountains of newspaper transcriptions from 1840-1903, and have found no connection or mention of any Blair other than children and grandchildren suggesting a connection. I chased Blairs born in Ireland from 1836 through 1840 with any connection with New York or Canada, and all are rejected. Even the mother's name Syaland is suspect, as the only reference I have seen is on FAMILYSEARCH.ORG, and being a transcriber myself, much of the interpretations found there bear considerable scrutiny. When I transcribe, I dump about half of the records because the image is so poor or the handwriting is too unreadable to use. Transcribers don't always have that same integrity and carry on guessing what it might mean. Remember, volunteers are not always the most reliable. I always weigh what damage I may do by guessing.
As I said earlier, I could perhaps save myself a lot of agro if I had a pile of money to throw at it, but then, what would I do with my time, and who can say purchased information is reliable anyway.
I continue to watch here for anything I may have missed, and will follow any lead within my resources. Maybe I'll get lucky yet.
I'm convinced Alexander came out of Ulster, probably Antrim, perhaps out of the slums and/or sweat-houses, poor as a churchmouse, Da probably beat the sh*t out of him so he struck out from home, (you paint the narrative here). Signed on as cabin boy or common labor for passage to Quebec, perhaps worked day labor for a couple of years and crossed into New York (the St Lawrence River used to freeze all the way across in the dead of winter up there. It hadn't been dredged into the channel it is today). The St. Lawrence River is less than a mile wide at Ogdensburg, Depeyster is approximately 12 miles, a half-day's walk in clear weather then and now. Why Depeyster... Why not.