Several famous people are associated with these Johnson County historic places including Marshall Hamilton Ensor, Loretta Ensor, Martin Van Buren Parker and James Beatty Mahaffie.
Some of the country's most noteable architects helped create the Johnson County places including Shelby Kurfiss, William McCabe, Edward Tanner, UNKNOWN, Hare and Hare, Joseph Hellman, Hare & Hare, Eddie Smith, Tuttle-Ayers-Woodward and Robert Boller. Prominent architectural styles found in Johnson Country are Italianate, Bungalow/Craftsman and Other.