The first gay parade in San Francisco was organized by a music company represented a heavy metal rock group called Black Sabbath.  It featured mostly leather enthusiasts, and the floats were sparse except flat beds for bands.  It moved up Folsom Street .  The next year (1971) the parade began at the Ferry Building and finished at City Hall.   Chase filmed this parade. (see PARADE under FILM).  He continued to photography parades and the until the late seventies. His interest was primarily focused on small intimate moments - especially when spectators had mixed feelings about the display on hand. Despite the obvious advances, many gay people were still under pressure to stay in the closet, and these parades brought out their obvious pain.