Many famous people are associated with these Otoe County historic places including J. Sterling Morton, Rollin M. Rolfe, Jay Morton, William Taylor and John Mattes Jr..
Some of the country's most noteable architects helped create the Otoe County places including Frederick Law Olmsted, King Iron Bridge & Manufacturing Co., John Gilligan, George Lee Fisher, M.E. Bell, Buckeye Bridge Works, Fisher & Lawrie, Kimballton Construction Co., August Gerhardt and George F. Lee. Prominent architectural styles found in Otoe Country are Romanesque, Gothic Revival and Italianate.