Trampoline was invented and first popularized in the U.S.A. This man was one of the main builders of the Olympic Sport.
Jeff Hennessy of Broussard, La., a noted trampoline coach whose athletes won a total of 26 World medals and former chairman of the International Trampoline Federation’s Technical Committee, passed March 24.
“Jeff was a genuine man and a pioneer for the sport of trampoline,” said Steve Penny, president and CEO of USA Gymnastics. “His legacy is evident in the program’s leadership today and how far the sport has come.” …
His last book is available for $11.95.
A Successful Guidebook of Twisting Single and Multiple Somersaults
Gymnastics Coaching.com 