Nelson's parents gave us a digital picture frame for Christmas. It is currently displaying a slide show of photos of Sarah from newborn days up until recently. He wasn't slighting Natalie and plans to add her pictures later; they just weren't accessible yet when he was uploading pictures to the frame.
But maybe it doesn't matter. One of the pictures on the frame is my favorite photo from Sarah's baby days. It's a picture of her smiling happily in her crib. The other day, Sarah was watching the pictures cycle through and reminiscing on the more recent ones. "That's when my cheek got painted at the bookstore!" The baby picture came up. "Oh, look!" Sarah exclaimed. "There's a picture of Natalie!"
Apparently they're interchangeable! ;)