When was the  French racing driver who has  José Dolhem as a half brother born? 
José Dolhem: Louis José Lucien Dolhem (26 April 1944 – 16 April 1988) was a racing driver from France, and the half brother of Formula One driver Didier Pironi (they had the same father and their mothers were sisters). Didier Pironi: Didier Joseph Louis Pironi (26 March 1952 – 23 August 1987) was a French racing driver.
26 March 1952