I'm trying to locate any living Klass descendants near Johannesburg, South Africa.  Nathan Klass (of Lithuania, 1874-1933) married Fanny Marks and immigrated to South Africa in 1912.  They settled in Lindley, Free State, and had 5 children:  Samuel Jacob Klass (b. Jan 13, 1915), Ruby Klass (b. Jan 22, 1917), Muriel Klass (b. Dec 21, 1921), Hannah (b. Apr 14, 1924), and Morris Klass (b. Jan 11, 1931). 

1. Samuel Jacob married Irene.  He died in 1990 in Johannesburg.  I do not know if Irene is alive. Who and where are their children?
2. Ruby married Sydney Hoffman. She died in 2011 in Johannesburg. He died in 2008. Their children are Adrian, Shirley and Natalie?  Where are they? 
3.  Muriel married Wilfred Duchen. They moved to near Ontario, Canada. She died in 2007. He died in 2009.  Who and where are their children?
4.  Hannah married Gerald Bennet Miller. She died in 1954. He died in 2006 in Johannesburg.  Who and where are their children?
5. Morris married Lorna (Felicity?) Jansen. He died in 2009 in Johannesburg.  Who and where are their children?

If you know the names, etc.,  of these Klass descendants, and/or how I can contact them, please email me at ancestrymail0@... .  Thank you.