In memory of Karen Lawrence, the Ronald McDonald House Charities of Greater Chattanooga will host its 6th annual Run4Kids 5K Run and Fun Fest. The event will take place at the Tennessee Riverwalk, Hubert Fry Center at 9 a.m. on September 20. For 40 years, the Lawrence family has hosted the Karen Lawrence Run in memory of Karen, who battled acute lymphocytic leukemia. Since the opening of RMHC in 1990, the Lawrences have helped other families stay close to their sick children, offering the comforts of home, and RMHC continues to honor her legacy.