The build record for Old Town 26183 is found on scan #15944 of the records on CD. It's a 17 foot AA grade Otca with open mahogany gunwales and decks, and was fitted with a keel and a floor rack, painted NH (New Haven?) green and monogrammed per description on the build record. It was shipped via rail with two spruce paddles on June 17, 1913 to South Norwalk, Conn.
If this still doesn't appear to be your boat, we can keep poking around until we nail it! Remember, an Otca of this era had a longer deck than a Charles River-- I'll locate a picture from the catalog.
Kathy