No. Mackenzie King was the grandson of William Lyon Mackenzie.
William Lyon Mackenzie King was born on December 17, 1874.
no because he did not get married
William Lyon Mackenzie King is the longest serving Prime Minister in Canadian history, and indeed, in the history of the British Commonwealth. He served a crucial role in developing Canada's autonomy...
He doesn't 'do politics' any more. He's been dead for over 50 years.