Well I contacted the Blues Heaven Foundation in Chicago and spoke with a man there who answered the phone. He gave me a e-mail address to send my contact info. He also "said" that he would contact Mrs. Dixon and get back with me. But, so far, nada; nothing. I would really love to speak with her.
Answering the question about the Soul Band. It was just a big cover band. Three female singers, a "stand-up" singer who didn't play an instrument, per se, although he was a good bass player and taught me some great walking bass lines. We had a five-piece horn section (three saxes [one a baritone], two trumpets) and a five piece rhythm section. I was about 17 at that time and had only been playing bass for a couple of years, and these older guys were teaching me "jazz." So a walking line through a 3, 6, 2, 5, turn-around played against a descending chromatic dom7-chord from the minor-third, was just so cool. They also taught me to "leave the hole" and not to fill every space. (George Porter, Pops Popwell, Bernard Odom) We covered the hits of the day and went to the studio several times to record originals, but they didn't go anywhere.
Some of my old friends and I are contemplating writing a book about all the krap we did and saw back in the day. We already have a title: "Bar Wars" whadya think?
Gotta go. C ya.