Johannes Postmus
Johannes Postmus (1877 - 1947) bụ Gọvanọ nke abụọ nke South African Reserve Bank. Oge ọrụ ya bụ site na abalị nke mbu na onwa nke mbu, na 1932 rue abalị iri atọ na onwa nke isii, na afọ 1945. Michiel Hendrik de Kock nọchiri ya.

Ndetu 

 Down Memory Lane: The Economic Society of South Africa, Ndị isi oche gara aga 1923-1963