Materials created or published by Canadian Liberal organizations and ministers during the World Wars and between. Includes materials created during opposition governments and Liberal governments, especially those with Prime Minister Hon. William Lyon Mackenzie King. Most materials directly relate to the Hon. W. L. Mackenzie King, including speeches, addresses, and different public and private events. Also includes materials created by the Hon. James Horace King, M.P., and the Hon. James Joseph McCann, M.P.