Ronald Duncan · Lineage tree

Description

African American martial artist (born 1937) who studied judo, jujutsu and knife fighting with Ernie Cates and Isshin-ryu karate with Don Nagle in the US Marine Corps, then taught "Koga Ryu" in Brooklyn from 1959.

Teachers (1)

• person
  Don Nagle

  sports_martial_artsIsshin-ryu Probable

  Probable

  Single source.

  The evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.

  fact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source expand_more

  fact_check

  Single source.

  “After serving in the U.S. Marine Corps, where he studied judo, jujutsu, and knife fighting with Ernie Cates (1933–) and Isshin-ryu karate with Don Nagle (1938–), Duncan began teaching “Koga Ryu” in Brooklyn in 1959.”

  — Green, Thomas A.; Svinth, Joseph R.. (2010). Martial Arts of the World: An Encyclopedia of History and Innovation info

Sources