David A Chang age: 54 Related to:San Chang, 70 Christopher Petrany, 56 Has lived in:Newton, MA Allston, MA Waltham, MA Watertown, MA David Y Chang age: 55 Known as: Dave M Chang David Cheung U D Chang David Y T Related to:Shuk Chang Has lived in:Newtonville, MA Norwich, CT Newton, MA Georgetown, TX