Wetmore House, also known as the Warren County Historical Society, is a historic home located at Warren, Warren County, Pennsylvania. It was built between 1870 and 1873, and is a two-story, red brick mansion in the Second Empire style. It has a mansard roof and small, one-story open portico. It was acquired by the Warren County Historical Society in 1964. It was added to the National Register of Historic Places in 1975. References External links Warren County Historical Society website History museums in Pennsylvania Houses on the National Register of Historic Places in Pennsylvania Second Empire architecture in Pennsylvania Houses completed in 1873 Houses in Warren County, Pennsylvania National Register of Historic Places in Warren County, Pennsylvania Buildings and structures in Warren, Pennsylvania Museums in Warren County, Pennsylvania