Date of Birth: 
About William David Knowles
- William David Knowles (16 February 1908 – 23 November 2000) was a Progressive Conservative party member of the House of Commons of Canada.
- He was born in Langton, Ontario and became a teacher by career. He was first elected at the Norfolk—Haldimand riding in the 1968 general election, defeating Jack Roxburgh.
- He was re-elected there in the 1972 and 1974 federal elections and completed his term in the 30th Parliament before leaving federal political office.
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