 Complete the following phrase:  Jacques Keyser 12 October 1885  21 March 1954 was a middle-distance runner. Born in Paris, he was the son of a Dutch father and Belgian mother, and could compete for both France and the Netherlands. Keyser took part in the International Cross Country Championships in 1907 and 19111913 and won individual and team medals in 1913; his teams placed fourth in other three championships. He competed for the Netherlands at the 1908 Summer Olympics, but failed to reach the finals of the 