English: Source: Standard Encyclopaedia of Southern Africa

As found at: https://af.wikipedia.org/wiki/L%C3%AAer:Bertha_Solomon.jpg

Public domain: This work was created in South Africa and is now in the public domain as its copyright term has expired. According to South African copyright law, all works in the public domain are released fifty years after their publication, counted from the beginning of the next calendar year. (Eg for 1966, from 1 January 2017.)