Iry LeJeune, Jr. is a pseudonym that according to Ron Yule, that was Eddie Shuler's brainchild. Eddie Shuler wanted to continue to capitalize on the legend of Iry LeJeune even after he was killed. Ron says it was Ervin. It wouldn't surprise me if other people played on the recordings...and Eddie just labeled the records Iry or Iry Jr. The artists themselves might not even be aware of it. Neither of these songs were THE Iry LeJeune.
I will see if Ron can put a paragraph or two RE the whole Iry LeJeune Jr. ordeal because he doesn't say a word about it as it currently reads.
I got the 26 song info from this article about Iry, but I don't know for sure if there was 26 or 25 songs. I was sure someone here would know the story. CM's story about the missing recordings is neat. I will be waiting to hear about the books release.