Jacob Dolson Cox, (Jr.) (October 27, 1828 – August 4, 1900) was a lawyer, a Union Army general during the American Civil War, and later a Republican politician from Ohio. He served as the 28th Governor of Ohio and as United States Secretary of the Interior. As Governor of Ohio, Cox sided with President Andrew Johnson's Reconstruction plan and was against African American suffrage. Secretary of Interior Cox implemented civil service reform into the Department of Interior.