Ummm no…try +40 years prior…DISCLAIMER: This history is off the top of my head…but I think it is fairly accurate.
The USDF GMO called CAMDA (Carl Asmis Memorial Dressage Association) was named after Carl Heinrich Asmis, a colonel in the German cavalry during Wold War I. He emigrated to the United States in 1921, a time when dressage was unheard of in the United States. He worked as a riding instructor in New York City until 1934, when he relocated to Maryland. He then trained hunters and jumpers at Durland’s Riding Club of Lutherville, MD.
In the years following World War II, there was a group of displaced European Cavalry officers who migrated to the US and who taught dressage and jumping.
After World War II, as dressage interest began to grow in the United States, Col. Asmis began giving clinics. In 1947, Col. Asmis became an AHSA recognized judge. In 1957, he served on the first AHSA Dressage committee, and in 1962, represented the United States at the FEI meeting in Berne, Switzerland where he was instrumental in writing the rules and regulations for equestrian competition of the 1964 Olympic Games. His daughter Helene Asmis, still teaches.
Names of prominent trainers from that era are Bert DeNemethy, Dezso Szilagyi, Bela Buttykai, Istvan Sorenyi Sander, Gabor Foltenyi…those are names off the top of my head, that came from the Hungarian School that was very close in their teachings to those of the Austrian Spanish Riding School after the breakup of the Austro-Hungarian empire post WW-I.
IEO (International Equestrian Organization) predates the USDF and was founded in 1958, and is the oldest GMO.
http://www.ieodressage.org/about-us.html [INDENT][I]The International Equestrian Organization was America’s first dressage club and USDF’s oldest GMO. The late Lilian Wittmack-Roye founded the Pennsylvania-based IEO in 1958. Roye, a native of Denmark, immigrated to the U.S. in 1949 on a one-year contract with Ringling Brothers and Barnum & Bailey Circus.
After her circus career ended, Roye settled in York, PA, and established a training facility, Bri-Mar Stables. Told, “Nobody wants a dressage show,” she proceeded to put on her own, a groundbreaking competition held at Bri-Mar in 1955. The IEO went on to host what some believe to have been the first CDI in the U.S., in 1976. The IEO also hosted the first AHSA recognized dressage show.[/I][/INDENT]
Besides IEO, there were other “dressage clubs” and attempts to mimic the European riding school model scattered in the US…basically in the east coast.
PVDA is the 2nd oldest GMO, and it was founded in 1964.
https://pvda.org/page/history
I believe Trip/Stretch (??) Harting started the Potomac Horse Center (PHC) in the late 1950’s to be a world renowned international equestrian training center intended to provide Olympic level training and teach serious horsemanship. I belive this is where Nuno Oliveira would come to teach in the US. This is where Betty Howett (BHS) taught following the British system.
Linda Zang’s Idlewyld Farm became the teaching base and location of Col. Bengt Lungquist (for whome the BLM championships are named)
There were other riding schools spread throughout the US to take the place of the now obsolete US cavalry schools…Morvern Park, and the American Dressage Institute (ADI) that was founded by a Margarita Serrell, a wealthy patron and based out of the campus of Skidmore College was disbanded in 1974…I believe Dr. Max Gahwyler taught there. ADI had very prominent alumni…I think the Poulins and other notables studied there.
What eventually became the USDF didn’t happen until the 1970’s when Lowell Boomer, founder of the Nebraska Dressage Assn, decided to invite active dressage participants to form a united body to represent dressage in the US…