About Us

Warren County Historical Society

Warren County Historical Society

Our Mission

To preserve and present the heritage of Warren County and Ohio.

Our Properties

The Warren County Historical Society owns and operates three historic properties in Lebanon, OH:

Harmon Museum, housed in Harmon Hall, is a  three story, 28,000-square-foot building, where artifacts from prehistoric eras to the mid-20th century periods are displayed and special exhibits abound.

Lebanon Conference and Banquet Center, housed in the Old Post Office, is available to rent for special events and group gatherings. This building has an indoor mural and wonderful historic architecture.

Glendower Historic Mansion, our house museum, is located on a hill overlooking downtown Lebanon. Glendower is one of the finest examples of residential Greek Revival architecture found in Ohio.