Oak Harbor has a colorful history originating with a man named Adolphus
Kraemer, a Toledo merchant who dreamed of developing a town that would
rival the likes of Detroit and Cleveland. Adolphus established his dream
town near the headwaters of the Portage River, 11 miles inland from Lake
Erie. Although it was first platted in 1835 as Hartford by Joseph
Wardlow, it was Kraemer who brought his family to settle in the
wilderness and develop the town that became Oak Harbor. Since there were
several Hartfords in Ohio, Kraemer suggested the name Oak Harbor because
the village was located on a river harbor and there was an abundance of
oak trees. Initially, Oak Harbor was a lumbering town, but as the timber
began to wane, the area saw an influx of German immigrants who
understood how to drain and farm the swampy land.