Waterfront concert will celebrate churches’ 70th anniversaries Sunday. LUDINGTON — Redeemer Lutheran Church of Scottville and Our Savior Lutheran Church of Hart are both observing their 70th anniversaries this year. In celebration, the two churches will host a concert by the band Koiné Saturday, Aug. 26, from 7 to 8:30 p.m. at Waterfront Park in Ludington. The performance is free…