Yeah bunch of books they found offensive and thought were instilling the wrong principles in young minds. The Far Side with it's comical rendition of God was squarely on that list. My old man was a big fan at the time so it's the books that got me in trouble when I brought them to school - why I remember it was on the list.
To be fair a number of the teachers were very liberal and looked the other way, especially the English teachers who had big run ins with school boards/the nuns/parents groups and the like. Year 9's reading an internationally acclaimed novel for a literature review that happened to have a sex scene in it... blasphemous! (A Hand Maids Tale). Bumping into some of my old teachers in recent years it seems things have got better, and the barbed wire from the external fences has been removed.