Background
He was born in Panama and was a United States. Marine.
He was born in Panama and was a United States. Marine.
Duncan attended Boys High School. Duncan has also studied a number of different styles such as judo, boxing, Hakko Ryu jujutsu, Dai-Nippon Jujutsu Ryu, Sosuishi Ryu, Kin Dai Gakko Ryu, aikido, aikijujutsu, kempo, and kobujutsu (weaponry).
Duncan was additionally one of the first blacks to teach martial arts in America. He is considered by some to be the father of American ninjutsu. He combined his training to create his Way of the Wind system and became one of the first black martial arts instructors in the United States.
Duncan was an instructor at the Bushido School of Self Defense in New New York
He has instructed military and law enforcement students. Black Belt magazine referred to Duncan as a pioneer in the field of ninjutsu.
Duncan began teaching Koga Ryu in 1959. Duncan was the first American to demonstrate ninjutsu to the American public in 1967.
Duncan, along with Stephen K. Hayes and Masaaki Hatsumi, helped to popularize Ninjutsu in the United States in the 1970s and the 1980s.
All three attended the 1987 Ninja Summit. Duncan has participated in numerous discussions concerning racism in the martial arts including claims that early on, many white instructors were not willing to take on black students. He stated that the reason why there was success in ninjutsu for Stephen Hayes and Masaaki Hatsumi and not for him was racism.
Quotations: "On November 19, 2012, the martial arts world lost another legend.".