This book was commissioned by the Stadtmauer family of Riverdale. It is an extensive genealogical and historical investigation into the four lines of their maternal lineage including the Gottesman, Davidovits, Fudem, Abrahamovits families as well as information concerning other related branches such as the Klein, Zeiger, Siebenzehner, and Spira families. The book contains comprehensive family trees, charts, and documents as well as rare photographs from the United States, Europe, and Israel.