You could try searching archived newspapers for that area. These often include small local reports of 'significant ' happenings at local businesses, such as closures, changes of management, and so on. I have not used the Canadian archival system, but there is one online:
https://www.bac-lac.gc.ca/eng/discov...ollection.aspx
The Australian 'Trove' system has been very useful in my research, hence the suggestion the Canadian system may be of help to you.
Mike