Among the intrepid leaders of the Nor'westers were such men as Sir Alexander Mackenzie, the discoverer of the Mackenzie River; Simon Fraser, the discoverer of the Fraser River; and David Thompson, who found the way down the Columbia south of what is now the Canadian border.
Alexander the Great was able to conquer a large area in a remarkably short period of time.
After Alexander's death, there were endless disputes between his heirs that eventually led to the complete destruction of the family.
Sir AlexanderRobertusTodd was born in Glasgow on October 2, 1907, the elder son of AlexanderTodd, a business man of that city, and his wife Jean Lowrie.
Todd has taken considerable interest in international scientific affairs; he is President of the International Union of Pure and Applied Chemistry, and Chairman of the British National Committee for Chemistry.
Lord Todd is married to Alison Sarah, daughter of Nobel Prize winner Sir Henry Dale, and they have a son, Alexander Henry, and two daughters, Helen Jean and Hilary Alison.