Complex sentence: After the war, his family returned to the Netherlands, but in the early 1960s sent him to Johannesburg, South Africa to work for Barclays Bank, later starting his own investment statistical service from his small flat in Hillbrow.
Split into simpler sentences: After the war, his family returned to the Netherlands. In the early 1960s they sent him to Johannesburg, South Africa to work for Barclays Bank, later moving to South Africa and starting his own investment statistical service from a small flat in Hillbrow.