* The name is misspelled. Could it be a different spelling, like Robert Langston Montgomery?
* The author is not well-known. Perhaps they are a niche writer or publish under a different name.
* You're thinking of a different person. Double-check the name and any other details you may have.
To help me find the author, please provide more information:
* Any other details about the author or their work? (e.g., genre, time period, specific titles)
* Where did you come across this name? (e.g., a book, website, article)
With more context, I might be able to help you identify the author you're looking for.