I just ran across this while looking up old skydiving friends. I did not know your aunt, but I did know the other two people on that plane. Gary Hannah was a jumper and a pilot at my first drop zone in Clear Lake, MN. Greg Worth also jumped there with us.
The person who is still around and would know the most about the crash is Greg Worth's close friend Stickman (Scott Staples). A few other people who might still be around and who knew Gary would be Chuck Androsky from Superior, Bob Stumm from Chip Falls, and Miles Hubbard who I think currently jumps at West Side Skydive in Winsted, MN.
If you would like contact info, I could help you find any of these folks.
