Van Coller Willem was a Reporter for the Sunday Times the Star Newspaper Johannesburg South Africa Circa 1920 1940

Any information would be appreciated. He wrote a continuing article about CONTRACT BRIDGE. I am researching him and his family in South Africa. He had 2 sons PETER & PAUL VAN COLLER, and 2 daughters ANNA & ALETTA. Perhaps there are still living relatives who can help me trace the family tree? Contact me ceciliawalsh792@gmail.com.