Tilson ran for the Canadian House of Commons in the federal election of 2004 and defeated incumbent Liberal Murray Calder by a margin of 43% to 39% in the new riding of Dufferin—Caledon.
Murray River | Alexander Calder | Murray | Anne Murray | Bill Murray | Andy Murray | F. Murray Abraham | David Murray | Murray Head | Murray Perahia | John Murray | Murray Hill, New Jersey | Charles Shaar Murray | Pete Murray | Patty Murray | Murray Hill | Al Murray | Margaret Murray | Calder Cup | R. Murray Schafer | Murray Walker | Eddie Murray | Craig Murray | William Henry Murray | River Calder | Murray Rose | Murray Gell-Mann | Jamie Murray | Gilbert Elliot-Murray-Kynynmound, 1st Earl of Minto | Diedre Murray |