Here's another thread as I'd hoped for.
You might like to know I can't find my correspondence with John. He mostly used post cards. I hope they are in the same box as my correspondences with Ross Russell and Lester Koenig (can't find them either).
I got the Bradford/Stevens material from Alan Bates (Black Lion/Freedom) with Cuscuna as a middle man.
Stevens was delighted and wanted me to press Bates for 3 or 4 additional unissued sessions. One was a large ensemble (including Parker, Rutherford, etc from memory) but I didn't have any money. DAMN.