Ohio's German Heritage by Don Heinrich Tolzmann  

This brief survey traces the basic outlines of German immigration and settlement in the history of Ohio. As the largest ethnic element in the state, German-Americans have exerted a profound influence on Ohio's history.

Five basic periods in Ohio German history are identified and discussed in this work:

If this book kindles your interest in Ohio German history, there is a list of further pertinent reading material in the select bibliography.