St. George's Church, Guelph St. George Station (Guelph, Ontario, Canada) Postcard Postcard 1 Nurses' Home, Homewood Sanitarium, Guelph, Ont (postcard)

We think of postcards as items that mark our travels, and circulate to family and friends.  In the digital age, we may even consider them obselete.  But what were these items used for fifty, or even one hundred, years ago?  Why are they so useful to us today, as windows onto the past?  This section considers them as a category of ephemera with immense research value.