Born in Jerusalem, Ledger was educated at British public schools and then went to work at Lloyds of London before joining his father's insurance business in Amman, Jordan. He was the Jordanian national tennis champion in 1962 and the same year won the first of three national karting titles. His motor sport career was rounded off with the Jordanian national rally championship in 1965. He later became a double national archery champion. In 1966 he joined the Royal Automobile Club of Jordan and became its chief executive in 1975.