Yep we learned square dancing in rural Virginia elementary school.
I vaguely remember square dancing in elementary school - usually something taught when it was raining too hard to have PE.
Then again, my school was a bit of a special case; somebody came up with the Brilliant Idea of putting three classrooms together in the school auditorium (the kind without permanent seats or a stage - it’s just a giant room, sometimes called a Multi-Purpose Room), separated by partitions. Something else missing: desks - everybody sat on the floor, except for some “common” tables with chairs.
As a Texan I don’t think our influence extends to PE, since textbooks aren’t involved. (Because of the immense volume of books bought by the state, publishers generally bend to their ridiculous standards rather than publish several different versions.)
I did learn square dancing in junior high but without male participation, no doubt to appease the “dancing is sinful” church brigades. In fact, when I went to 4-H camp it was called “folk games” for the same reason.
Despite it being fifteen years after Brown v. Board, this was the first year of integration there. The few Black girls in class really made square dancing more fun.