This book is about the Saints Who Left Descendents and the Saints who fit in the Tree of Saints. In addition the Saints have to be a Major Saint in the Church. Either the descendents of the Saint are known or the ancestry of the Saint is known. The descendents, Ancestors, or the branch of the tree is discussed as well as the Saints Family and date. The book is organized in time periods, mostly centuries up until about 1500. These Saints are everyone's ancestors and one out of three Americans can prove it.