Gregory Duncan – Way of the Winds® at UMAC Martial Arts Seminar, March 2013

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Interview with Union Township Mayor

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Way of the Winds® – Gregory Duncan – NYC Demonstration, 2012

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Warrior Island Casting Call

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Gregory Duncan at 2009 Tournament of Champions

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Professor Ronald Duncan at the Oriental World of Self Defense Madison Square Garden 1974

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Gregory Duncan Sai Form – Maryland State Championships 2011

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Speed Training with my Father, Prof. Ronald Duncan

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