It shows a man, a woman and a small child beside a car. On the car's spare wheel it seems to say Western Motors Ltd, Swift Current.
On the back of the photo is written "Dore Bob Wife" - I think.
It's also got a photographer's stamp - "Ward's Photo Studio - Rosetown SASK." and the date "SEP 10 1931". Although this is a little faded.
It's possible that the family name is Bye - there is a family story of one of my grandfather's brothers going to Canada.
There are three versions of the picture available.
A larger compressed image (163KB)
The larger image, but not compressed (901KB)
There is also a large image (924KB) of what's on the back of the photo.