The Cornwall Community Museum is located in Lamoureux Park in Cornwall, Ontario. From the online articles it looks like they have a lot planned for this summer.
The volunteer at the Cornwall Public Library told me were it was located and she explained that it has the holdings of the Stormont, Dundas and Glengarry Genealogical society which was defunct. It was disbanded and no longer operating in the area. This is the 2nd Genealogical Society that has shut down, the other being the Glengarry Genealogical Society.
This You Tube video is about the park: http://www.youtube.com/watch?v=-sR-p8cDoq4 It was done in 2008 but it is very good. The museum is featured about 4:09 minutes into the video. Since I did not take any photos, why I don’t know, probably tired. I found parking in the Park about York Street.
I entered the museum, signed a register and maybe paid a fee, and was taken through the big door at the back and down some very steep and long stairs into the basement of the museum. It was a big room with a large table in the middle. The air in the room was cool and refreshing. I pretty much sat in the chair provided and relaxed.
A lady was working diligently and the man was reading. He consulted with the lady at the computer that was in the room. He said to that it was an index.
I gave him a copy of my McDonald booklet and he accepted it and said something like he was afraid it would get lost. That was not encouraging.
I went over to the stacks and found an assortment of books, histories, booklets and more. There were at least two section about 6 feet of bookcases on both side. I do not know if they have a finding aid for their collection. That would be nice.
My suggestion is if you are diligent and willing you might give it a try. I would contact a Lily who is apparently the past president and suggested by the volunteer at the Cornwall Library. She might be able to describe the contents of this archive. I also have the name and information of the volunteer that was at the table. Contact me and I will provide their emails. I have not asked permission and think this is the best idea. This archive looks like it is only open in the afternoon on Wednesdays.
I had left my booklet so I was content. I returned to the outside and it was very sunny, beautiful and warm. Someone was having fun on the river.