Aletta Johanna Mercia VAN DER WALT married Imri Arthur Pieter PRETORIUS Eugenie Mercia PRETORIUS David Imri PRETORIUS Pamela Susan PRETORIUS Children of Aletta Johanna Mercia VAN DER WALT and Imri Arthur Pieter PRETORIUS Eugenie Mercia PRETORIUS married to John TRETHEWEY David Imri PRETORIUS married to Frances HOWARD Pamela Susan PRETORIUS married to Hector KLEINOT