Native villages on the Duwamish were eventually supplanted by white settlement and commercial use, and there was evidence of deliberate burning of Indian longhouses in 1893. Duwamish people continued to work and fish in the area, using man-made "Ballast Island" on the Seattle waterfront as a canoe haul-out and informal market, but by the early 20th Century, most remnants of traditional life along the river had disappeared. The last year-round native residents on the river - an old man named Seetoowathl, and his wife - died of starvation in their float-house on Kellogg Island in the winter of 1920.