This project concerns the 625 Jewish families identified in Alexander Dietz 's Stammbuch der Frankfurter Juden (1907). Many gravestones from the Frankfurt Jewish cemeteries are available online at Steinheim Institut . This book is available on Google Books and as a free ebook .Also available online from Leo Baeck Institute (in part) is Ele Toldot (These are the Generations) , a collection of tr...