 The post office opened in 1882 as Hanlan and changed to Warrenton in 1912.The community and Canadian National Railway point were named Warren, while the post office remained Warrenton.Warrenton was rescinded in 1955 and Geographic Board of Canada correspondence in 1905 indicated that the post office and township were named Hanlan after Edward “Ned” Hanlan, “champion oarsman of the world” from 1880–1884.