As a delighted Guaraldi later recalled, the audience was "...hanging from the trees. I mean, they were hanging from the trees!"
The event was covered in considerable detail by local newspapers, but they weren't the only media representatives on hand. Guaraldi fan Robert Kapkin was present in the audience; he recently got in touch to share some of his memories ... and a rather important piece of information. Take it away, Robert!
I was 17 years old and recently had become a fan of John Handy, later to become a teacher of mine at San Francisco State. I walked from my house, near the zoo, up Wawona Street to Stern Grove, to see my first live jazz performance. When I got there, the place was more crowded than I had ever seen it. Vince was correct, when he said people were sitting up in the trees. I could not find a place to sit, even up on the hill north of the stage. I worked my way down toward the stage and sat on the grass next to the benches, where people must have been waiting for hours ahead of time. The benches were to the right of me, and to the left was a huge television camera. In those days, they were monstrous. I remember on the side of the camera, it said "The Bell Telephone Hour, in Color."