 The resulting ore soon turned out to be more suitable for coking coal and a town began there named Cokedale.Cokedale faded in importance when the mine declined and the other towns all merged on December 19, 1898, as Sedro-Woolley.On May 15, 1922, a large circus elephant known as Tusko escaped from the Al G. Barnes Circus, which was making one of its stops in Sedro-Woolley, at that time.