Classic film poem from 1964, directed by Paul Julian and Les Goodman with animation by Margaret Julian. According to a Wikipedia entry on the poem, it was a co-winner of the Silver Sail award at the Locarno International Film Festival in 1964. A couple of the user reviews at IMDb are worth quoting. Old_tv_guy calls it

An eerie and disturbing little gem from Melrose Studios. Animation is excellent, of a photocollage style you hardly ever see: stark photo images and gaunt, jagged lines. It seems to be taking place in a backwater of infinity, or a nightmare world of pale colors and limitless space.

And tim_gatchell wrote in 2008,

I also saw this short as a child. Probably in about the 5th grade. It left an indelible impression on me and I continue to use this poem as an example for people when groups allow other groups to be ganged up on and have their rights taken away.

Even more remarkable is that while attending college at Cal Poly, I would take summer classes at the local community college to get credits and save money. Took 2nd Semester Freshman lit and guess who my teacher was…yes, Mr. Ogden himself. He is a remarkable man and I have total respect for the man.

He is still teaching I believe in Costa Mesa at the Coast Community College.

I was unable to verify this biographical information about Ogden.

Though a poorer-quality version of the film exists on YouTube, this was uploaded to the Internet Archive by the Academic Film Archive of North America.