One by one, the trapeze artists topped off their routines by dropping from their high-swinging bars into the net
stretched below, then rebounding into somersaults — to the roar of the crowd at the traveling circus in
Cedar Rapids, Iowa. And one kid in the stands began to wonder: Hey, what if there was a contraption that made
it possible to keep on bouncing and flipping?
George Nissen, 16, who was a member of the gymnastics and diving teams at his high school, was soon
tinkering in his parents’ garage, strapping together a rectangular steel frame and a canvas sheet. Even
though it was not quite as springy as he had hoped, he called it a bouncing rig. That was in 1930.
It would be several years later, while a business major at the University of Iowa, that Mr. Nissen and his
gymnastics coach, Larry Griswold, would work together to make a more flexible contraption with a nylon
sheet. They still called it a bouncing rig.
Then, in 1937, Mr. Nissen and two friends formed a traveling acrobatics act called the Three Leonardos
and began performing throughout the Midwest and Texas and then in Mexico. It was there that he heard
the Spanish word for diving board: el trampolin.
He added an “e” and registered “Trampoline” as a trademark for what has become a joy-inducing device for
backyard tumblers, fitness freaks and, since 2000, Olympic athletes.
Mr. Nissen, who devoted his life to promoting and manufacturing the trampoline — once renting a kangaroo
to bounce with him in Central Park — died Wednesday at a hospital near his home in San Diego. He was 96.
His son-in-law Ron Munn confirmed the death.
Dwight Normile, the editor of International Gymnast magazine, said of Mr. Nissen in a telephone interview on
Friday: “He took the device all over the world and gave them as gifts. He wanted everybody to know about the
health benefits of bouncing on a trampoline.”
Ten years ago, Mr. Nissen spoke of his enduring goal to see trampolining become an Olympic sport. For years,
his friends told him he was just dreaming.
“They said, ‘George, it will be the year 2000 before trampoline is ever in the Olympics,’ ” Mr. Nissen said in an
interview with International Gymnast.
They were right. “He was at those Sydney Olympics in 2000, 86 years old at the time,” Mr. Normile said,
“and they actually invited him to bounce on the official trampoline.”
A twist was that in the early 1950s, Mr. Nissen had donated a trampoline to the Soviet Union — its first.
Russia won the first Olympic gold medals for trampolining in 2000.
George Peter Nissen was born in Blairstown, Iowa, on Feb. 3, 1914, one of four children of Franklin and
Catherine Jensen Nissen. His father owned a dry goods store. The family later moved to Cedar Rapids.
George started tumbling when he was a child at a local Y.M.C.A. and continued in junior high and high school.
At the University of Iowa, he was a three-time winner of the intercollegiate national gymnastics championship.
After making the first prototype trampoline, Mr. Nissen and Mr. Griswold, his college coach, opened a small
factory in Cedar Rapids and began marketing the device. But initial sales were slow, and Mr. Griswold, who died
in 1996, went out on tour as a comedic acrobat under the name the Diving Fool.
Mr. Nissen, however, continued to make and market trampolines, even persuading the military to buy them as
a training tool for pilots and divers. He served in the Navy during World War II, then returned to Cedar Rapids to
expand his company. The Nissen Corporation, which he sold in 1973, eventually produced a full range of gymnastics equipment.
In 1951, Mr. Nissen married Annie De Vries, a high-wire artist from Holland who was performing with the
Cole Brothers Circus in the United States. Besides his wife, he is survived by two daughters, Dagmar Munn
and Dian Nissen-Ramirez; and one grandchild.
Well into his later years, Mr. Nissen remained head over heels for his sport. In 1977, with his son-in-law Ron,
he scaled a pyramid in Egypt — one with a flattened top — set up a trampoline and did some flips.
Year after year, he attended the National Collegiate Athletic Association gymnastics championships.
“And at the banquet before the competition he would do a handstand,” Mr. Normile said. “It became a tradition.”
“The last time I saw him there was in 2006,” Mr. Normile continued. “He did one of those kind of yoga headstands
where you’re on your head and elbows. That was only four years ago; he was 92.”
