Tales, love the time line idea.
She was born in 1878
Her first two children (my aunt and mother were born in 1907 & 1908
The family moved to Nova Scotia one year after the Halifax Explosion, so 1918
And I'm going to leave this all up there as proof of my 'duh' moment.
It would had to have been from 1918 onward.......as they lived in another province until then and it's unlikely
she did a lot of traveling with their six children. I had always assumed that the canons were those in Victoria Park, Charlottetown, Prince Edward Island. Realizing today that it was at Fort Anne it should have clicked that it would had to have been later. This would make her at least 40 when the picture was taken.
So I'm looking at 1918 forward.........now to check out that site KC recommended.