You're welcome, Wendy, and thanks so much for your kind offer.
What is the burial index for England? Does it cover the 1800s - early 1900s in the London area? I have a number of folks who died in England but whose final resting place is unknown. Should I send you a PM, since this is off-topic for this thread? I don't want to distract from your query.
I am in Toronto, Ontario and I don't have any personal knowledge of Saskatchewan. That's why I hope the genealogical society will be able to point you in the right direction. Such small places might not have had street/phone directories of their own but they might have been included in a larger town's. The same goes for the newspaper.
Once you know who to contact, if Cotham was included in any directories, make sure the person checks under Edwards if they don't find Emma under her own surname. Then, ask them to check if there are listings by address in the back of the book. They should check the address listing, too, since Emma might be listed there as a boarder. (I can't remember how because it was a few years ago, but I found my great-uncle in some directories that way.)
There's usually a way to find information after the cut-off dates but it takes a bit more work. It's always worth a try.
Regards,
Josephine