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Yuma Simpson (née Hickman), or Great Grandma Simpson is Homer's grandmother from "The Old Country", which bears similar characteristics to Ireland or Scotland. Yuma married Orville Simpson in the early 1900s. For a few years, they lived inside the Statue of Liberty, along with their sons, until the head of it was filled with too much garbage. Much of this story is questionable, as it is gained from one of Grampa's senile rants. With their sons they moved to Springfield where she had another and eventually died there. Yuma passed away before Bart, Lisa and Maggie were born.