It's possible there are a few reasons for this:
* Typo: The name might be misspelled. Could it be "Ralph R. Over" or "Ralph R. Ober"?
* Less Known Author: The author might be less known, especially if they specialize in a niche genre or haven't published widely.
* Pseudonym: The author might use a pseudonym.
To help me find the right author, could you please provide more details? For example:
* Genre: What type of books do you think this author writes?
* Any Titles: Do you remember any titles of their books?
* Approximate Publication Dates: When do you think the books were published?
With more information, I can hopefully find the author you're looking for.