He was born in Winburg and died in Cape Town, a descendant of the Loyalist Johannes Frederik Janse Van Rensburg.

[1] Van Rensburg qualified as a solicitor and was hired as the personal secretary of Tielman Roos, the Minister of Justice.

The organization said they had 160,000 members and 15,000 soldiers, who had not taken the "Africa oath" of willingness to fight against the Axis anywhere on the continent, ready to strike.

[2] There is also evidence that Van Rensburg was the mastermind of German espionage operations in South Africa, and a treason case was built against him.

[3] Van Rensburg died on 25 September 1966 in Cape Town, and was buried with military honors.