* A misspelling: Perhaps the author's name is slightly different, like "William G. Slover" or "William L Slover."
* A lesser-known author: There might be a writer with this name who has published work in a specific niche or region.
* A pseudonym: The author might be using a pen name.
To help me find the correct author, please provide more context:
* What kind of books do you think they write? (genre, subject matter)
* Do you know anything about their writing style or themes?
* Where did you encounter this name? (book title, website, etc.)
With more information, I can try to identify the author and their works.