No Gay Pride parade that day.
This was way before the City became a mecca for that kind of thing. In those days, my great-great grandfather had just finishing up a career as a paving contractor in SF. His son (my great grandpop) had passed away two years earlier (the same heart stuff that I have) and had a career in major-league baseball and later, his own shipping business. His son, my grandfather, was a young man of fourteen and probably living across the bay from there in San Rafael.
Some of the people in that clip may be direct relatives of mine. :-)