William McFlys wife

William McFly's wife was the wife of William McFly. She was the mother of Arthur McFly, and the paternal grandmother of George McFly.

In 1955, Marty McFly and Emmett Brown discovered a photograph taken of her and her extended family in the book "A History of Hill Valley, 1850-1930" that they discovered in the Hill Valley Historical Society archives.

Behind the Scenes

Lea Thompson portrayed both Maggie McFly and William McFly's wife in the photograph, while Michael J. Fox portrayed both of their husbands, Seamus McFly and William McFly, respectively.

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