It's possible that:
* The name is misspelled. Perhaps you are thinking of a different author with a similar name.
* The author is relatively unknown. There might be a lesser-known author with that name, but their works haven't gained widespread recognition.
* The author is new. There might be a new or upcoming author named William Bruton, whose works are not yet widely available.
To help find the right author, please provide more information such as:
* What genre do they write in? (e.g., fiction, non-fiction, poetry)
* Any specific titles or subjects their books cover?
* Approximate time period of their writing?
With more details, I can help you find information about the author and their works.