Library and Archives Canada (LAC) presents photographs from its collection of Residential Schools, taken between 1885 and 1996 on Flickr.
Flickr allows easy access to photos from the province or region of your choice. Right now, there are photos from Alberta, Saskatchewan, and Manitoba on Flickr.
And if you want good, print editions of the photograph, you can order a photo from the LAC.
The Flickr package is at https://www.flickr.com/photos/lac-bac/sets/72157644658798142/
The history of Residential Schools is on http://www.bac-lac.gc.ca/eng/discover/aboriginal-heritage/Pages/residential-schools-photo-sets.aspx