The popularity of Wing Chun all around the globe can be attributed to three persons, everyone practising Wing Chun should know them: The first one is Bruce Lee. He was able to show Chinese martial arts in his movies and let people know about Wing Chun. The second one is my Si-Fu Wong Shun Leung. His nickname was King of talking hands. Why was his nickname that? It is because he often compared his style with others and exchanged skills with other styles. So he really represented Wing Chun. As an example, in the 80s he represented Wing Chun in Beijing, and Beijing recognized that Wing Chun was a good style because of Si-Fu, so his contribution to Wing Chun is big. The third person who spread the system after Bruce Lee popularized it is Si-fu Leung Ting. He spread the system to all over the world and – in Europe he started there much earlier than many Sifus. That is why he contributed to spread the name Wing Chun to all over the world. That is why I think these people deserve respect for what they have contributed.
Wan Kam Leung

Wan Kam Leung was probably Wong Shun Leung’s first student at his own school. After being the assistant coach at Ip Man’s school for many years, Wong put out a sign for his new school. Wan relates that he approached Wong before the school was even opened and was told to come back in a month.

Wan has been a bodyguard and a trainer for the Hong Kong police as well teaching what he calls Practical Wing Chun for many decades.

He was the Sihing (kung fu brother) of my Sigung (my teacher’s teacher).

Here is an interview and some other articles.