About David Walker (racing driver)
David Walker was an Australian racing driver who drove for Lotus in the 1971 and 1972 Formula One World Championships. He won 25 out of 32 races in 1971, including the Formula Three support races at the Monaco Grand Prix and the British Grand Prix at Silverstone. By the end of the year he had won both the Shell and Forward Trust UK Formula Three titles. After Lotus discovered Walker had tested a Formula Two car for another team, he was dropped from the team for the Italian GP and the Canadian GP, where he was replaced by Reine Wisell.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.