Hi Gaz,
Thanks for the help. My dad was born in Kimberley and unfortunately I don't know his mother's maiden name nor his father's first names, so very hard to get a certificate there. My birth certificate - also S African, does not state my parents names, so not sure if others would prior to 1940's. My dad died in Durban in 1985 and I have tried archives there hoping his death cert. would reveal his parents full names, but to no avail either. His parents died in S Africa. It was my maternal grandparents who are buried in Warren Hills.
I might try Ancestry 24 as I believe they have a few new websites.
Lorand