I am so grateful that I found the article about the benefit for the miners of hazard ky in Philadelphia. Have been trying to find out for years when it occurred. it was a benefit concert. As I recall besides Phil, Tom Paxton and Eric Anderson were part of the benefit. Also, possibly Buffy St. Marie. As it turned out it was December 4, 1963. I was a senior in a high school in Philadelphia. It has always been one of my all time great concerts. Thank who ever found the article. If any one was at the concert please fill in the gaps of who was on the bill.