Country roots for so. Chester County siblings at Flash, May 31 By Denny Dyroff, Correspondent, The Times Born Sisters, the Chester County duo of Kristen and Kara Zack, will celebrate the release of their new CD with a special show at The Flash in Kennett Square, May 31. When the Born Sisters headline a “CD Release Show”  at The Flash in Kennett Square on May 31, it will be a hometown event for...