It’s been 70 years since the 1954 failed desegregation attempt at Milford High School. It would be eight years later, 1962, when desegregation efforts finally saw success. On Saturday, April 6, a film about that endeavor, “In Due Course: Integrating Milford High School,” will premiere at 1 p.m. at the Milford Public Library, hosted by the Milford Museum Series. A …