I'm not sure what you are asking. Your last attached picture appears to show a slight bend to the left at the top of the stem. This is not likely to be a significant issue but if it annoys you then repair or replace it. The 16 foot long canoe from 1948 that you asked about at https://www.wcha.org/forums/index.php?threads/18051/ is an HW model. If this is the same canoe then why are you are describing it as an "Old Town Model A" now? Let me know if I am missing something.
Benson
I prefer to repair stems that have a twist to them. It's not a terribly complicated job to splice in a new (and straight) section. What we can't see is what else is going on with the inside rails and decks that allow the stem to sit off to the side.
With the planking off and a straighter stem you will be able to true thing up as you put them back together. With everything straightened up things will line up better when you reinstall the stem bands.
This thread should be of interest to you. 1935 Old Town HW | WCHA ForumsThank you very much for your response . I hadn't thought of repairing it as opposed to replacing it but I do like that option much better as replacing a straight section is relatively easy
The "Old Town Model A" name is a recent speculation with no supporting documentation. I suspect that the build record and period catalog page for your other canoe simply describes the model as an Otca. This is thought to have been based on the cable address or telegraph code shown at the top of their letterhead during this era as shown at http://www.wcha.org/catalogs/old-town/records/letterhd.jpg for example. Sorry for the rant,
Benson