If you enter "South Street, Braddock" into a search engine, you'll be able at least to find where in the US and Canada such an address exists. You can then post on the appropriate location boards asking for assistance from someone with local knowledge.
You could also post on the Census/US/General board asking for a lookup of the 1910 census to see if he can be found. Someone on that board may know how to search for addresses on the census. If that doesn't result in any answers, post on the Census/Canada/General board for a lookup of the 1906 census.
Those are the only things I can think of at the moment. I'm sure others will have more suggestions.