It's possible that:
* The name is misspelled. You might want to double-check the spelling.
* The author uses a pen name. They might publish under a different name.
* The author is relatively unknown or published in a niche genre.
* The author is a recent writer. New authors may not yet have extensive online presence.
To help me find more information, please provide:
* Any additional details you know about the author, such as the genre they write, a specific book title, or the time period they wrote in.
* Any websites or sources where you encountered the name "Samuel Woodruff".
With more information, I might be able to help you locate the author and their works.