Complex sentence: David E. Branch (born November 27,1948) has served as the Commissioner of the Ontario Hockey League (OHL) since September 15,1979, and as the President of the Canadian Hockey League since 1996.
Split into simpler sentences: David E. Branch (born November 27,1948) is a Canadian hockey administrator. He has served as the Commissioner of the Ontario Hockey League since September 15,1979, and as the President of the Canadian Hockey League since 1996.