The Mendota Museum & Historical Society's Mission is to promote the preservation of the history of Mendota, its railroads and recognizing agricultural heritage through three museums, the Breaking the Prairie Museum, the Hume-Carnegie Museum, and the Union Depot Railroad Museum.

The Hume-Carnegie Museum is located in a restored 1904 Andrew Carnegie library building

* Extensive photographic collection depicting over 100 years of Mendota area history * Wild Bill Hickok Collection * Three Western Cottage organs and a Carpenter organ manufactured in Mendota in late 1800s * Over 5000 photographs and items of memorabilia from the past 150 years * Medical exhibit of items from early 1920s Drs. Cook offices * Gift shop items * Hume-Carnegie mission statement