Several times I went to Winfield for the Bluegrass festival and never knowingly met up with John, although we always talked about it. But, funny thing, on reading this thread the memory came back to me of midnight jamming with a crew of folks on one of the camp roads, and of a bass player who merrily thumped along on a peculiar double-washtub bass on wheels.
Perhaps we never met, but it sure seems like we may have played music together, and I am very glad that we had the chance.