(Sorry for the crookedness of this next snapshot!) This looks like the little girl missing in the last photograph, now posing with a young man and a dog. I'm going to take a guess and say the young man is her older brother? You can see they've stopped in the middle of some kind of work- there's a box, a hose, and a shovel propped up against the house.
If you know who this may be, let us know in the comments!