The Judge John C. Flanagan Residence is a house in Peoria, Illinois, United States. The home was constructed for Judge John C. Flanagan, a Philadelphia native, in 1837. The house was either part of an original 620acre tract purchased by Flanagan's father from local Native American tribes or part of a 20acre tract purchased by Flanagan when he came to Peoria in 1831. It is believed that Abraham Lincoln was once a guest in the home during the Lincoln-Douglas debates from 1854 to 1860. The building was added to the National Register of Historic Places on September 5, 1975.The house is now operated by the Peoria Historical Society as the John C. Flanagan House Museum, a 19th-century period historic house museum. The house also serves as the headquarters for the Peoria Chapter of the Daughters of the American Revolution.
