Picking up on an old thread with some more stories:

About 1969, when the obligatory rainstorm arrived, Bob Beers came onstage and announced that the festival was moving to the Petersberg town hall, where we could all get under cover. So the entire crowd moved to their cars to drive the couple miles to the town hall. There was no official parking crew that year, but various people spontaneously grabbed our flashlights and tried to bring order out of the vehicular chaos by directing traffic. After the parking field was cleared, we looked around and discovered two things: all but one of this ad hoc crew (who had been working in the dark, not sure who was waving the next light up the line) were members of the extended Haynes Family (mainstays of the Philadelphia folk music community). So of course, we immediately adopted that one person! And over at the edge of the field, there was a guy in his underwear, who had decided to sleep in his car. But when he answered nature's call, he found himself locked out of the car...I'm pretty sure we found a way to open the car for him, but it probably took a while.

And in 1972, I was standing backstage during an evening concert, when Marty (Bob and Evelyne's daughter) came over to me and said, "come with me...there's somebody trying to sneak in through the woods." So we walked over to where the guy had been seen. He saw us coming, and dropped to the ground. When we got close to him, Marty looked down at him and said, very quietly, "Excuse me...you're lying in a patch of poison ivy." He was last seen heading back to the road, looking for a place to take a serious shower.

I'm pretty sure the year of the Northern Lights was 1972, the summer after Bob Beers died. I always figured he had something to do with that display...