Sheena,
Canoe #68276 fits into the Old Town numbering system but unfortunately, when I check the scans, 68276 & 68275 come up missing. When I look at #68274, I find that it was shipped on April 11, 1922 and # 68277 was shipped on May 15, 1922...so this should give you a close date on your canoe. If you post pictures here, you will receive help from others on identifying the model, etc.
Thanks for contacting the WCHA.
Ric Altfather