KEITHSBURG, a thriving post-village, capital of Mercer county, Illinois, on the Mississippi, 150 miles N. W. from Springfield. A large quantity of produce is bought and shipped at this village, which has a good landing. Population, about 500. (Baldwin's New and Complete Gazetteer of the United States..., 1854)
KEITHSBURG Is a thriving post village of Mercer county, on the Mississippi, 150 miles north-west from Springfield. Immense amounts of grain and produce are shipped from this point. The location is very fine, affording an excellent steamboat landing. The soil in and about the village is considered the finest in the state. It contains a large number of stores, two good hotels, the Calhoun and Matthew houses, several churches and other buildings of note. A larger amount of grain is shipped from this point yearly, than from any other town four times its size between St. Pauls and New Orleans. Population, about 2,000. Edward Moran, Postmaster. (Hawes' Illinois State Gazetteer...,1859)