I was there! I was 8. Do you mean those clip on chairs than attached to the bench? It was weird the stuff you could order through the literature counter at the hall.
I remember it was an international convention and there were a lot of people wearing full native costumes and getting their pics taken on the field. I remember thinking those poor ladies in the kimonos because it was soooo hot. The stadium was so packed I remember sitting outside on folding chairs.
Also remember the constant reminder that the oleander bushes were poisonous! I was scared to death of them and still to this day!
Ahhh the “Babylon” book. I had to memorize a three scripture sermon to offer that book door to door. At eight years old.