This was posted to facebook by bassist Hans Sturm:
"For over 40 years John has been one of the heavy Chicago bass cats, supporting the young ones the entire time. Played in the day with Goodman, Venuti, Deems. Lost his bass to a crushing incident at a jam - couldn't afford insurance. For those who have - he could use a helping hand."
Here are a couple of articles from the local papers: Examiner article Chicago Sun-Times article
Anyone wanting to help John with some $$, but unable to attend one of the benefits can PM me for his mailing address.