On Saturday, July 4, a group of two cavers, Allen School and Gerry Barsky, visited J-4 Cave in Pennsylvania. In the cave they encountered three groups that were without helmets or other cave gear, using flashlights for light. One of these groups were encountered at the Wedding Cake with two of their four lights failing. The cavers asked if they wanted help finding the entrance and the spelunkers readily agreed. They were led out, traversing the Highway, a ledge 15-20 feet above the floor, in the process.
NSS News, December 1993 (Part 2) V51N12, Page 361.
Al Scholl and Gerry Barsky Personal Communication July 13, 1992, 2 pages.
No analysis has been done.