Dong On (Deng An) began studying the Hung Kuen system early in life alongside his elder brother, Dong Jik. When he was 16 years of age he met and became impressed with his father's friend, Fung Siu-Ching, and began studying Weng Chun.

Notes: Compiled from written and oral accounts of Jee Shim Weng Chun Kuen and New Martial Hero.