In the 1960s, the Rev. Martin Luther King Jr. spent much time visiting — and at one point renting a home in — Chicago to help with open housing initiatives and the civil rights movement in the city. Here, Dr. Martin Luther King Jr. and his wife Coretta pose with neighborhood children in their new apartment at 1550 S. Hamlin in Chicago on Jan. 26, 1966. (Tom Kinahan / Chicago Tribune) As we honor the Rev. Martin Luther King Jr.’s birthday this Monday with a federal holiday, there will be programs, pageantry and celebrations for a man who expressed a...