Simon Michaelson PRETORIUS married Olga CORBITT 1934–1966 Lydia PRETORIUS Renel Jane PRETORIUS Mathys Marthinus Johannes PRETORIUS Pieter Schalk Grobbelaar PRETORIUS Children of Simon Michaelson PRETORIUS and Olga CORBITT Lydia PRETORIUS Renel Jane PRETORIUS Mathys Marthinus Johannes PRETORIUS Pieter Schalk Grobbelaar PRETORIUS