Reading through the thread, I see I'm not the only one getting mixed up between Abigail and Hannah.
My reason for confusion is the ages listed for the two blood sisters, where Hannah is listed at 16 and Abigail is listed as 14. There could be closer to three years difference between the two girls, depending on their dates of birth. In all the pictures I've seen, the girl who now wears glasses looks to be the older one, but is being identified as Abigail, I thought she was Hannah until I started cross checking all of the details- because the latest reports say that Hannah was the one who was missing teeth. The girl who wore glasses had all her front teeth and the smaller girl rarely showed her teeth.
The likelihood that friends and family would not correct this if it was an error is slim to none.
So my question is what kind of genetics or medical issue could account for such a difference in both size and facial maturity? Clearly, the smaller girl did not show any evidence of dwarfism. Based off the information reported, Abigail was 2 and Hannah was 4 when they were adopted, if that helps.