Mostly just checking out these 1924 air photos:http://contentdm.ucalgary.ca/collection ... 7_1924.kml
Looking for buildings which then were at or sometimes far beyond the edge of town, and then looking in the general area on google maps to see if they still exist, typically studying the roof shapes, house sizes on google maps to see if any stand out as being significantly different than the surrounding homes.
Then checking My Property:http://www.calgary.ca/_layouts/cocis/ca ... &sideBar=3
To confirm year of construction. I started looking for oldest buildings but then became more interested in country/farm houses which ended up being built around as the city expanded. Hoping to get a listing of city properties so that much of this could simply be done by querying the database