* Typographical error: Perhaps the name is misspelled. Are you sure about the spelling? Double-checking for variations like "Harold E. Dilts" or "Harold Dilts" might be helpful.
* Less known author: It's possible the author is less well-known or published in a specific niche. If you have any more details about the genre or topic of their work, it might aid in finding them.
* Fictional character: The name could belong to a fictional character in a book, movie, or other media.
To help me find the correct author, please provide more information:
* What kind of books do you think they wrote? (Genre, topic, etc.)
* Do you know any titles or specific works by them?
* Where did you encounter this name? (Website, book, etc.)
With more details, I might be able to help you find the right author.