The highest parachute jump, if I remember correctly, was from roughly 102,000 feet by the Spams in about 1960. although there was a small stabilising drogue, there was talk that the jumper (Joe Kittinger?) was supersonic for a very short time, though this seems a bit contentious to me.
In fact, a quick Google (the curiosity got me) suggests this as a useful link. Hope it helps
http://hypertextbook.com/facts/2004/...atiHayek.shtml
Conan