The kids and the dog is a precious one, especially fot the expression on the kid's face. You don't capture that every day.
The oven photo is a mystery, there were either two doors, which is rare to be honest, or a brick was removed. I don't see any other explanation for that.
I don't know brick ovens but like you said, there had to be a second open end some place. It's still a very unique perspective and creative. Incredible what the mind of a person can see out of simple things.