This book provides detailed information about descents from the famous Magna Carta Barons of 1215 for over 200 individuals who emigrated from the British Isles to the North American colonies in the 17th century. It combines research in original records with the use of published literature to provide well documented ancestral lines for American colonists with Magna Carta ancestry. It features hundreds of biographical summaries as well as over 28,000 citations to published materials, making it the most documented source book of its kind. In addition, the book contains a massive 93-page bibliography--probably the most exhaustive listing of medieval genealogy and history ever published.