I graduated in 1963, too... there was drugs in our school, something called yellow jackets, reds, etc.. to this day I couldn't tell you what they were, a girl in my class died from an overdose my Sophomore year....
Your high school was more advanced than mine. Yellowjackets are nembutal and I think reds are Seconal, both barbiturates.
Ironically, my nice family doctor had prescribed amphetamines for me as a weight loss aid so I was legally speeding my way through high school. No one thought of this as a "drug."