Canoe ID
http://dragonflycanoe.com/id/index.html
That's the link to a website you may find helpful in identifying your canoe. Scroll down on the left to Old Town and Thompson and see if any of your questions are answered... or at least begin to be answered... then come back here with more questions or conclusions to discuss.
Many of the old canoe companies had no identification other than a decal on the deck, which disappeared over the years. But yours may have a serial number under layers of varnish and dirt. We are able to connect a serial number to the original build record for three of the old canoe companies... the dragonfly canoe id site will explain this, and where/how to check for numbers.
I can't see the deck on your canoe too clearly, but it could be a Thompson... however, some of the other canoe companies had decks similar to Thompson's. Shell Lake and Peterson Brothers made canoes very much like a Thompson.
Your canoe has very nice lines... could be a Thompson "Hiawatha". It appears to have outside stems... that's the steam-bent strip of wood (usually oak) on the outside edge of the bow and stern... it protects the boat when someone paddles with too much enthusiasm into the dock, and it gives an extra touch of class and beauty (in my opinion) because it adds to the pronounced recurve of the stems... and it's usually finished in the natural wood, in contrast to the canvas color.
I'll share a bit of "canoe trivia". Your canoe's shape is reminiscent of the Ojibwe ricing canoe, which had stems with a similar degree of recurve. I'll attach a picture. During the first couple decades of the 20th Century, the canoe went from being a vehicle for hunting and fishing to a vehicle of courting and wooing. The design of the ricing canoe worked well for the courting-style of wood-canvas canoe: its shape permitted the elimination of the center thwart-- rice-harvesters could collect the grain on a blanket in the center of the boat, and scoop it up in a bundle without having to work around that wood brace... and in the case of the courting canoe, a lady or two could recline on pillows in the open, center area.
Anyway-- you have a nice canoe-- I hope it becomes one of your family heirlooms!
Kathy