A very good map, but you seem to have Georgia and Carolinas mixed up.
I have here a possible map of what might have happened had the United States failed to remain as a union right after independence. I am working on a timeline to go along with it but I still have a few details to go over. The map might change in the future though.
Yunkon??? Did you perhaps mean Yukon?
Manitoba that doesn't seem to include anything could give it that name...
Hudson is a "Dominion"??? with a total population of what, a couple of 10s of thousands?