About Us

Warren County Historical Society

Get an inside look at what Warren County Historical Society has to offer! Stop by for their everyday displays plus new seasonal displays!

Posted by Resource Marketing on Monday, September 25, 2017

Harmon Museum

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 downtown Lebanon, OH. Below, you'll find a short description. For more information, including hours of operation, please select from the menu on the left. For information on renting one of our properties for an event, click here.

Harmon Museum (commonly referred to as the "Lebanon Museum") is housed in historic Harmon Hall. A three story, 28,000-square-foot building, this museum is where artifacts dating from prehistoric eras to the mid-20th century periods are displayed and special exhibits abound.

Lebanon Conference and Banquet Center, is the new name for the Old Post Office and 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. The front lawn is a wonderful place to hold a wedding.