Helen is Greg Heffley's great grandmother. She is the wife of William and the mother of Nana Heffley, Great Aunt Dorothy, and Great Uncle Charlie. She is never seen in any of the books except The Wimpy Kid Do-It-Yourself Book.
- The Wimpy Kid Do-It-Yourself Book (Indirectly mentioned)
- She is mentioned (indirectly) in the extended Do-It-Yourself Book, but her name isn't there in the orignal one.
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