Mound Station was established as a post office in 1860; the Village of Mound Station incorporated December 23, 1901. In 1903, the post office name changed to Timewell, to avoid confusion with the town of Mounds, Illinois. The Timewell name has supplanted the original name of Mound Station in local use, but the legal village name has never changed. Thus legal references in U.S. Census Bureau products as well as lists from the Illinois Secretary of State's Office continue to show Mound Station, while the local Post Office continues as Timewell.
