That's the Mexico side. No way US popped gas that far over the wall onto the Mexico side.
Also, fence and gap went where?
That's the same woman, and the same child.
Fingers still in ball (center image)
Pants on in left.
Pants off in center.
She looks big for a typical indigenous from that area.
She is also several shades lighter than that woman. (See hands)
Doubt they are related.
Youngster might be Puerto Rican. Nose. Brow.