Hilmer George Nissen (1921-1993) - Mémorial Find a Grave
George Nissen obituary | Training programmes | The Guardian
Trampoline inventor, former Cedar Rapids businessman George Nissen dies at 96 | The Gazette
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
George Nissen Gets His Inspiration
George Nisson, inventor of the trampoline, lives in San Diego's UTC | San Diego Reader
George Nissen (Inventor and Gymnast) - On This Day
The Olympic trampoline tradition: Remembering the man who taught the world to bounce | The World from PRX
Stream George Nissen, Inventor of the Trampoline - The History Show, RTÉ Radio 1 by Lorcan Clancy | Listen online for free on SoundCloud
George Nissen: Inventor of the trampoline | The Independent | The Independent
FEBRUARY 3: trampoline inventor born | BEST TEENAGERS EVER
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
Biography of George Nissen
Nissen, George • USA Gymnastics
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How the Trampoline Came to Be | Innovation| Smithsonian Magazine
George Nisson, inventor of the trampoline, lives in San Diego's UTC | San Diego Reader
George Nissen | Lemelson
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
TRAMPOLINE HISTORY - - George Nissen on the Trampoline at Age of 90! (2006) - YouTube
George Nissen, Father of the Trampoline, Dies at 96 - The New York Times
202 - Interesting Things: George Nissen and The Trampoline — JC
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The Olympic trampoline tradition: Remembering the man who taught the world to bounce | The World from PRX
Trampoline Inventor Saw Sport Enshrined in Olympics - WSJ
