My grandfather died on 26 Dec 1956. Was born on 8 Sept 1926. His full name was Gert Johannes Zacharias. He was married to Susanna Lucia Helberg (Smith). He died in Kenya.
Then my great grandfather was Adam Hendrik Adriaan Paul Helberg. Born 14 Oct 1892. Died sometime in 1965. (ordered death notice from Ancestor.co.za). Was married to Aletta Susanna Helberg (Jordaan).
Not sure how long they lived in Kenya, but they all were born in South Africa.
Ancestor.co.za is a great place to get death notices from. I ordered one for my grandfather, and is showed where they were born, how old they were, children they had etc.