This is described as the only known footage of the fire that gutted Pomona High School, and it probably is. The event is still described as one of the most traumatic in the city’s history, even though no one was injured. Classes were never held again in the East Holt Avenue building, which was later torn down and replaced by a shopping center. The school was rebuilt elsewhere in town.
I’m not sure what I think of the “Chariots of Fire” theme as background music, but the video is fascinating, if sad, viewing.
A separate video made last year of a former student’s reminiscence of the event can be seen here. It’s informative and moving.