Mike, thanks for your follow-up. The pictures confirm that it is 100% not an Old Town.
And, as has been suggested by Dave. possibly a Rushton. A few more and better images could help to confirm that. There are a few things that stand out that suggest that it is not.
First, a Rushton stem is a bit wider than those of other builders. That does not seem to be true of this canoe.
Next, a Rushton stem would have Rushton, Canton NY stamped on the top of the stem. This would be present on both stems. Related, the stamps used to number Rushton canes are quite specific. The numbers visible in your images are not made using those stamps, they are too large. A Rushton would also have the length of the canoe stamped on the stem.
On the further topic of Rushton markings, the stem bands (if original) would have Rushton stamped into them in the section that sits over the deck, again using a very specific stamp. You should look for that. Finally, typically a thwart will also be stamped with Rushton, Canton NY.
Then there are the seats, thwarts and decks on this canoe that need to be considered. The stern seat has the correct appearance and shape. The bow seat is odd. It is mounted directly to the rails and not to cleats as one would expect. That's not to say this could not have been built this way, it's just not something that is typical.
The thwarts have the appearance of old B grade Rushton thwarts and do not display the elegant shape that we normally see on a Rushton.
Finally, the decks are lobed as you would expect on a Rushton. But they look really large. Without better pictures to really look these over I'm not convinced yet.
Something to look for on Rushton canoes (and also period St. Lawrence County canoes that were built by Brown or Wells etc.) is a very wide top plank. This is a very solid "tell" when you find it.
Finally, the shape of the stem does not seem to turn back enough to be a Rushton canoe.
To my eye, is this a SLBW canoe? If so, the bow seat mounting is not correct and that stem is still not elegant enough.
More pictures please!
Hopefully someone more familiar can chime in.