I was too young to attend either show; I was four years old in 1969, and was seven years old for the Pocono Music Fest in 1972 (and for the record, I did have my tricycle loaded up for both trips, but my parents insisted I take a nap instead).
But, I do remember one of my teachers talking about the Pocono Music Festival, sometime later. She seemed really excited that they would bring a festival like that to Pennsylvania. She was younger than the other teachers - had a bit of a hippie look, and the other teachers wore those cat glasses on a chain around their necks. They of course, did not approve of the music festival. In Pennsylvania or anywhere else.