I love this article shared by Emily titled: The Achiever, the Peacemaker and the Life of the Party: How Birth Order Affects Personality. Especially after watching those early family movies, when mom and I couldn't take our eyes off of Sally's every move! Mom commented: "Dead on! Sometimes the baby of the family has first born qualities if there is more than 4 years between her and the middle child." Seems to be true when you think about how independent Lucy has always been.