Abby is Jennie's Ali

Andrew and I were looking at a little book of photos that we made for Ali when she was his age. He identifies all the pictures of Alison in the books as himself (fair enough), the picture of his Uncle Lawrence he insisted was Daddy, and the picture of Abby he thought was Mommy. I corrected him and said "that's Abby, she's my sister" and he said "She's your Ali?"