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William "Bill" Hill was the founder of Hill Valley in 1850. A monument of him still stood in 2015. In 1992, the monument had an inscription that said "The Old Pioneer And His Mule Standing On A Hill". Clara Brown brought the founding father to 1992 to participate in the town's annual Founder's Day Celebration.
Clara with Bill Hill, having brought him to 1992.
He is the grandfather of Eliza Hill McFly, the great-grandfather of Arthur McFly, the great-great-grandfather of George McFly, the great-great-great-grandfather of Dave McFly, Linda McFly, and Marty McFly, and the great-great-great-great-grandfather of Marty McFly, Jr. and Marlene McFly
Notes[]
- A realistic version of Bill, based on the appearance of actor James Cromwell, was shown in an illustration from Back in Time: The Unauthorized Back to the Future Chronology.