Ancient History through Photography

I found these old photos of children while antiqueing years ago. Where did these children live? The first photo has plants that look Southwestern. Maybe this was Texas or New Mexico. I love the little double-breasted coat and the hat the lad has on. The second photo is so charming in the creamy sepia tones and especially the pose the little girl is striking with the floppy brimmed hat. The third has a mysterious, atmospheric feel...it looks like the child is on the edge of a very deep abyss.