 Designed by the firm known as LaBelle and French of Marion , Indiana , the Blackford County Courthouse is considered an excellent example of Richardsonian Romanesque architecture , which was popular at the time . LaBelle and French also designed the White County courthouse in Monticello , Indiana ; the Trumbull County courthouse in Warren , Ohio ; and other buildings in the region . Listed December 31 , 1974 , the Trumbull County courthouse is also part of the National Register of Historic Places . Unfortunately , the White County courthouse was severely damaged by a " direct hit " from a 1974 tornado ( rated as " EF4 " using the Enhanced Fujita Scale ) , and therefore demolished . LaBelle and French also designed one of Hartford City ’ s hotels , and one of the city 's many glass factories . 
