. . . . . . . . "1917" . . "William C. Macdonald" . . . . . "1831" . "Sir William Christopher Macdonald" . . . . "MacDonald Professor of Physics" . . "1917-06-09" . "Sir William C. Macdonald" . . . . "William Christopher Macdonald" . . . . . . . "Macdonald" . "William Christopher Macdonald" . . "1831-02-10" . . . . "Sir William Macdonald" . . . . . . . . . "Sir William MacDonald" . . "William Christoper Macdonald" . . . . . . . . . . . . "chair of Macdonald Professor of physics" .