Mount Hope Cemetery

[mpd618]

Perhaps this map existed as a proposal for where the cemetery would be located and was not actually ever started, as your Waterloo links seem to suggest the actual cemetery was incorporated 12 years later in 1867 (incidentally the year of confederation).

I don't know about this specific case, but that kind of thing was definitely true to some extent. E.g. Caroline Street never went all the way to Mt. Hope St. Or, for another example, there was never a town built at Shantz Station, even though you can see a grid of streets on a number of maps from the mid 19th century.