George Brown
George Brown, a Scottish immigrant, founded The Globe. Through his newspaper he exerted a very great influence on the early development of Canada. He was the architect of the Reform Party, which later became the Liberal Party. Both as a journalist and as a politician he spoke out for responsible government and freedom of the individual. He was elected to the Parliament of the Province of Canada in 1851 and some years later, as leader of the Liberal Party, he entered into a coalition with John A. Macdonald of the Conservatives to proceed with the confederation of the Canadian provinces.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.