Gabby Simpson (née Crouse) is an ancestor of the Simpson family. She married Abraham Simpson I and had five children: "Old Tut" Simpson, Lou Simpson, Hugo Simpson Sr., Dulcine Simpson and Gaston Simpson. She is Abe's great-grandmother and the great-great-grandmother of Homer, Abbie and Herbert Powell and the great-great-great-grandmother of Bart, Lisa and Maggie, Stanley and Ling Bouvier (adopted).
