I poked through the Morris database and found 16 open gunwale canoes (out of 210), three of which were fire-survivors that were finished at Old Town, so we don't know if they are still around.
The earliest canoe with open gunwales in our Morris database appears to be the one Denis and I bought, which just arrived from Maine. This canoe has no serial number but has two tackholes in the inwale, indicating it possibly had a s/n plate there. This would place it in the pre-1908 category (according to current theory), and because it has three pairs of cants and open wales I place it post-1905.
The next-earliest Morris with open gunwales is #8622, which dates from around 1910.
It has been my impression that Bert Morris liked his pocketed-rib solution to canoe-building, so he didn't push the open gunwale. Old Town got right in there, with the Ideal model having open gunwales... suggesting to the public that, for a canoe to be "ideal", this is the way to go.
The "standard Morris" has closed spruce gunwales--- inwale, outwale, and cap are all spruce, stained mahogany-color. This was standard on a canoe that had mahogany decks/thwarts/seat frames. Upgrades were offered, with mahogany outwales that are D-shaped and mahogany cap, and either spruce inwale or mahogany inwale, depending on how much the customer wanted to pay. You got a lot for your money back then.
It seems that people were more cautious about accepting new technology a hundred years ago... so we see Gerrish and others putting lashings on the early wood-canvas, for those who paddled bark canoes who might expect that... and we see closed gunwales offered by the old companies into the 1920s.
Now, we jump in with upgrades to Windows 7, even though the computer sorta works in Vista...
Images posted below are from the Morris catalog dated 1910, courtesy the Historic Wood Canoe and Boat Company Catalog Collection CDs available from
http://www.wcha.org/catalog/ and
http://www.dragonflycanoe.com/cdrom.htm on the web.
Kathy