It looks like a Trailcraft canoe, one of which I built from a mail-order kit around 1969-70. As memory serves, the three frames were sawn from plywood and the stringers and gunwales were some kind of mahogany. The instructions called for simply painting the canvas cover with a few coats of paint, without any filler.
I remember the canoe being surprisingly sturdy (given the minimum amount of wood in this w/c boat), a bit tender and a bit clunky. It made a couple of trips down the Housatonic River in Connecticut, and a canoe/camping trip to Kejimkujik Park in Nova Scotia. The canvas cover held up well. It was my first canoe, and I did not find it very satisfactory -- tender, but with none of the benefits (speed and responsiveness) that a tender boat can have. It was, in fact, a bit of a clunk. Perhaps I would have been more comfortable with it had I more experience, but I think not. I did have fun building it, and I did learn a bit about canoes and canoeing for the short time I had it -- I gave it away after one summer's use (to a Boy Scout troop), in favor of renting something better when I needed a canoe.
Trailcraft was allegedly still in business as late as 1998, although not building canoes. I have no idea whether they still exist, but their 1998 address was Trailcraft Inc. 405 State St. El Dorado, KS 67042. If they are still around, maybe someone there would have further information.
Whether or not your canoe is a Trailcraft, I don't believe that it was built according to the plans published by Popular Mechanics. The PM article and plans show a boat with a usual complement of ribs, and full planking over the ribs -- rather than the three sawn (plywood?) frames supporting spaced ribands on your boat.
