It is slightly larger than the USJA and USJF, as they have crossover members from both of these organizations, since they are the designated national governing body of the USOC for the Olympics.
President Ulysses S. Grant witnessed a demonstration of jujutsu by judo founder Kanō Jigorō and several others when visiting Japan in 1879.
[1] Kano and fellow student Godai Ryusaku performed randori for Grant and his party.
[2][3] Yoshiaki ended up teaching Senator James Wolcott Wadsworth Jr.'s wife, who happened to attend the same country club as Theodore Roosevelt.
Yoshiaki was subsequently invited to Washington to give a demonstration at the White House.
Many servicemen picked up martial arts during the war and returned home to teach them all across the country.
After these advances, it was officially recognized as an AAU sport, and there have been national competitions and tournaments ever since.