Yuma Simpson
Wikisimpsons - The Simpsons Wiki
Yuma Hickman, or Great Grandma Simpson is Homers's grandmother from "The Old Country", which appears to be Northern England or Scotland. Yuma married Orville Simpson in the early 1900's. Shortly after WW1. For a few years, they lived inside the statue of liberty. Until the head was filled with to much garbage.
