Papers of Jonathan Warner and his family of Jefferson in Ashtabula County, Ohio, 1836-1887. Correspondence documents the activities of Warner's immediate and extended family, and documents their opinions on sectionalism and slavery. The collection includes letters written by his brother, George Washington Warner, which document his emigration to California in 1852, as well as his activities in Washington Territory and Idaho Territory until 1865. Business records in the collection chiefly consist of deeds, contracts, and other legal instruments related to real estate transactions in Ashtabula County, as well as property tax assessments.