she's 5' on one doc, 5'5 on another, and then she's 5' and a half inch...and on this one, she couldn't make up her mind?
Looks like SAD is 5'6" on the passport application you posted. Don't see any particular reason she'd lie about her height.
I'd say she doesn't seem to look particularly short in photos I've seen. Then, too, a 5'5" or 5'6" mother is far more likely to have 6'1" son than is a 5'1" mother.