Search:

Wong Shun Leung is both Bruce Lee's and my Sifu's senior. So that history is whack.

Then they don't know their history. It's also common knowledge that William Cheung's father was a high HK Police official as it says in the WSL article. Hawkin's dad wasn't a high Police Official.

Duncan was my Sifu so I know a little about what happened. It was after William Cheung had a fight with some sailors on a ship from HK to OZ that made Duncan want to learn...

It's common knowledge the Bruce Lee was introduced to Yip Man by William Cheung and was instrumental with Bruce's WC development as was WSL.
In this article by Wong Shun Leung...