A portrait of the Rev. Martin Luther King Jr. hangs above a memorial service for the slain civil rights leader at Holy Angles Catholic Church at 607 Oakwood Blvd. on Jan. 15, 1974, in Chicago. (William Kelly/Chicago Tribune )
Sadness fills the eyes of a woman at a ceremony for the Rev. Martin Luther King Jr. Day on Jan. 14, 1974, at Holy Angles Catholic Church in Chicago. (Lynette Miller/Chicago Tribune)
Holding her daughter on her lap, a woman wipes away a tear as she listens to a recording of a speech by the Rev. Martin Luther King Jr. at a memorial service in his honor at Holy Angels Catholic Church on Jan. 15, 1974, in Chicago. (William Kelly/Chicago Tribune)
A young girl listens to Gov. Dan Walker’s memorial speech at a ceremony for the Rev. Martin Luther King Jr. Day at Holy Angels Catholic Church in Chicago on Jan. 14, 1974. (Lynette Miller/Chicago Tribune)