I'm confused about the number of generations you say are in the photo.
The two adults are identified as mami and papi. Are these your grandparents? or your great grandparents? Whose mom and dad are they exactly?
I'm assuming the two girls in the photo are their daughters? One is your mother? or your grandmother (or great aunt)? Who is Yayita? A sister, cousin, niece, friend? I don't recognize anyone in your tree by that name (although I'm not too familiar with Hispanic nicknames).
If you think the woman is your great grandmother who died in 1947, and one of the girls is your mother who was born in 1945, then there seems to be a middle generation missing in the timeline?
I'm afraid, I'm not being much help. Sorry.