Dr. John was involved in many civic organizations and was a patron of the arts. He loved opera and at one point had concurrent season tickets to every major and minor opera company in Texas. He was a cellist, an avid chess player, ham radio operator, and dabbled in astronomy by hand grinding the mirrors for, and building, his own telescope. For a fuller recounting of his life and interests, please see his official obituary.
Dr. John was a member of The Maiwand Jezails and in 1965 attended the Basil Rathbone lecture at Wayne State College. He was invested into The Baker Street Irregulars in 1969 as "Sir Jasper Meek."