I don't know if anyone has posted this yet (did a search and got no results), but Google Books has all the issues of Black Belt magazine online. In these issues you can find 5 articles on Dong Family Taijiquan. July 1967 - The "Grand Ultimate Fist" of Tai Chi Chuan, August 1972 - Tai Chi Chuan - Art of Passive Resistance, September 1972 - Tai Chi Chuan Part II, June 1976 - Tai Chi for Self Defense, and December 1984 - Tai Chi Chuan - Who Says It Can't Work On The Streets.
Enjoy.
Fyn
Enjoy.
Fyn