A collection of short-stories

Authors especially those who write short stories or have published smaller works might not always gain widespread recognition or have their works extensively documented. It's also possible that the collection you mentioned might be limited in distribution or could be more regionally known. If L.A. Pittenger is a pseudonym or pen name used by the author for this collection or if there are additional details you have about the publication or the stories within it providing more specific information could help in identifying or understanding the collection better.