Who is he? Can't find any references via Google.
Sorry, this was an inside joke. John was the husband of Lynne Ludy, a coworker at JRM/Delmark back in the day. John was an introvert and seemed to spend all his time composing. He had stacks of his work next to the piano in their apartment. On rare occasions he would play some of them for close friends. I'm sure John Litweiler heard a few. They moved home to central Michigan in the '70s and divorced. John passed away a few years ago.
Sorry for the derailment.