Here are the first hits at familysearch.org Maybe you will see a useful clue here.
Sophia Smit
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 6 January 1919
baptism: 16 April 1919 Cape Town, Cape of Good Hope, South Africa
father: Carel Frederik Smit
mother: Wilhelmina Susanna De Jager Smit
Ella Sophia Smit
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 31 July 1938
baptism: 2 October 1938 Johannesburg, Cape of Good Hope, South Africa
father: Karel Lodewyk Smit
mother: Margaretha Abigael Meyer
Margaretha Magdalena Sophia Smit
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 15 April 1940
baptism: 19 May 1940 Johannesburg, Cape of Good Hope, South Africa
father: Cornelis Johannes Smit
mother: Margaretha Magdalena Sophia Ehles
Anna Sophia Cornelia Smit
South Africa, Free State Dutch Reformed Church Records, 1848-1956
birth: 9 July 1916
baptism: 29 October 1916 Ladybrand, Free State, South Africa
father: Antonie Johannes Hermanus Smit
mother: Elizabeth Johanna Van Tonder
Sophia Smit
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 6 January 1919
baptism: 16 April 1919 Woodstock, Cape of Good Hope, South Africa
father: Carel Frederik Smit
mother: Wilhelmina Susanna De Jager Smit
Sophia Smit
South Africa, Church of the Province of South Africa, Parish Registers, 1801-2004
child: William Smit
Sophia Smit
South Africa, Church of the Province of South Africa, Parish Registers, 1801-2004
child: Charles
Anna Sophia Smith
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 23 August 1881
baptism: 30 October 1881 Cape Town, Cape of Good Hope, South Africa
father: James Smith
mother: Johanna Elizabeth Muller Smith
Anna Sophia Smith
South Africa, Dutch Reformed Church Registers, 1660-1970
birth: 23 August 1881
baptism: 30 October 1881 Cape Town, Cape of Good Hope, South Africa
father: James Smith
mother: Johanna Elizabeth Muller
Lilian Sophia Smith
South Africa, Methodist Parish Registers, 1822-1996
baptism: 2 June 1881 Grahamstown, Cape of Good Hope, South Africa
father: Thomas Smith
mother: Caroline Emily Smith