If you check the posting under the date 24 Jun 2005 under my name Margaret Robert, I was also looking for information on the Dorion.
A lady had the newspaper clipping which told what happened.
I went to the National Archives in Ottawa and found where the ship was missing and the name of the crew members but that is all. I made a photocopy of this. It gave details of the ship, what it was worth, its weight, etc.
Not sure if you live in the Halifax area but I found this on the internet, they have a meeting this Saturday, March 24, maybe very helpful for you. They would be able to give you ideas as to where to look for more information.
http://www.chebucto.ns.ca/Recreation/GANS/This site may also be helpful, it is a message board for Nova Scotia and is broken down by districts. You could post the same mesage here.
http://boards.rootsweb.com/localities.northam.canada.novasco...Hope this helps... Margaret