Mahoning Avenue Historic District

Mahoning Avenue Historical Area is a group of four mansions on a bluff above the Mahoning River, just northwest of Warren's courthouse square. Once part of a grand boulevard of large homes, the row survives as one of Ohio's few largely unchanged "Millionaires' Rows." The Smith House, built in 1828 by master builder Isaac Ladd for merchant and state senator Leicester King, is Federal in style. The Kinsman House, a Greek Revival brick mansion of 1832, stands beside Frederick Kinsman's small law and land office. The Perkins House, an 1871 Italianate residence, hosted Grant, Garfield, Hayes, Harrison and McKinley. Together the buildings show the builder's art from the Federal through the Victorian periods and reflect Warren's political, business and social life. Most now serve public purposes, including county offices and city hall, and the grounds still hold some exotic plantings and green space.