Kenneth David Duncan, 39, of Lexington and Dunblane, Scotland, March 23, 2007 following a courageous battle with cancer. Beloved husband of Laura (Gardner) Duncan and loving father of Madeline, 6 and Charles, 3. He was employed at BD in Waltham as an International Strategy Director. He was a devoted family man who was very passionate about his family and work. He was an inspiration to many people due to his drive and determination which earned him success in the many challenges he faced. He was an avid outdoorsman who enjoyed kayaking, skiing and biking. All who knew him here in the United States and in Scotland will feel this tragic loss. His funeral and burial will take place in Dunblane, Scotland.