Hieronymus Mueller Museum, Decatur

About Hieronymus Mueller Museum

The Hieronymus Mueller Museum in Decatur, Illinois preserves the history of Mueller Company and the Mueller family through artifacts, memorabilia, and library materials spanning the company's operations since 1857. Visitors explore exhibits including the current display on women in Mueller Company's history, examining how women contributed both in traditional and unusual roles from the company's beginnings. The collection includes over 10,000 antique records and historic objects donated by Mueller Water Products. Exhibits feature stories such as the Rocking Chair Club, a 1920s program where the Mueller Company presented rocking chairs to employees upon their marriage. The museum houses physical artifacts and library materials documenting the legacy of founder Hieronymus Mueller and his descendants, including his wife Fredericka and their seven children. The museum operates on a regular schedule Tuesday through Saturday, with staff-guided tours and group visits available by appointment.