The Miller Family Papers consist of materials relating directly to the William H. Miller family of Port Clinton, Ohio, but within the collection some papers of both the McRitchie and Mackey families are included. The McRitchie and Mackey families are related by marriage, as are the Mackey and Miller families. The Papers date inclusively from 1828 to 1978 and include correspondence, diaries, legal and financial papers, printed materials, scrapbook material, photographs, and maps.