author
Known from Project Gutenberg as James Leo Duff, this little-known writer survives in the record through a single comic title, The Rubaiyat of Ohow Dryyam. The scarcity of biographical detail gives his work an air of literary curiosity.
Project Gutenberg lists J. L. Duff as James Leo Duff and credits him as the author of The Rubaiyat of Ohow Dryyam. Beyond that identification and the surviving title, reliable biographical information is hard to confirm from the sources I found.
That makes Duff one of those authors who is remembered more through a book than through a well-documented life. For listeners and readers, that can be part of the appeal: a chance to discover a writer who sits just outside the usual literary spotlight.
Because solid published information appears to be very limited, it is best to treat details about his life and career with caution unless stronger archival sources turn up.