It's possible:
* The name is misspelled: Perhaps you're thinking of a different author. Could you double-check the spelling?
* The author is lesser-known: The author might be very niche or have a different name that they use for their published works.
* The author is new: It's possible they haven't gained significant recognition yet.
To find out more, you could try:
* Searching online: Try different variations of the name, like "Lee R. Ritter" or "L. Ritter".
* Checking author databases: Websites like Goodreads and LibraryThing can help you find authors and their works.
* Searching for specific books: If you know the titles of any books by this author, search for them online.
Please provide more information if possible, and I'll be happy to help you find the author you're looking for.