The first volume of the Wiesbaden Jewish Family book, published in 2017, contains the inhabitants of the two former rural communities, Breckenheim and Delkenheim. It is the first step towards a comprehensive genealogical evaluation of a multitude of historical sources, which was compiled by a volunteer team of the Paul Lazarus Collection and Spiegelgasse Active Museum. The evaluation also included the database of Jewish citizens drafted by the Wiesbaden city archive.
The timeframe begins with the introduction of systematic sources about 1820. Through the evaluation of other source categories, the period could be extended in individual cases until the beginning of the 18th century.