Keywords: Joseph Duncan House.jpg 71000294 39 44 9 N 90 14 58 W Front of the w Joseph Duncan House located in Duncan Park in Jacksonville Illinois Jacksonville Illinois United States Built in 1833 it is listed on the National Register of Historic Places own 2014-07-04 User Nyttend Nyttend Built in Illinois in 1833 Houses built in the United States in 1833 1830s houses in Illinois Historic house museums in Illinois Italianate architecture in Illinois Jacksonville Illinois National Register of Historic Places in Morgan County Illinois Parks in Illinois Wooden houses in Illinois Building-centered pictures by User Nyttend Joseph Duncan House |