My Personal Memories of John Corcoran

I was in touch with John Corcoran for the first time in 1989, through a phone call from him, while I was in Hamilton, Canada. A little later I met him, which happened again in 1991 in Barcelona and also in Buffalo in 1993. We corresponded for many years and continued to be in touch through the email until 2020, when I received his last message. The following is a short description of our relationship, from a strict personal way, during those 30 years of friendship. Professional subjects, either logical, philosophical, or historical, are very briefly mentioned here, just when needed for context; they will be developed in full by other participants in this volume.