+———Thomas Clapp (1563 Istha, Hesse, Germany – 25 Nov 1624)              |          +———Geisa Clapp (1619 Istha, Hesse, Germany – )          |   |              |   +———Elizabeth Unknown          |      +———Nikolaus Clapp (1644 Istha, Hesse, Germany – )      |   |          |   +———Catharina Brylande      |  +———Johann Jost Clapp (1669 Istha, Hesse, Germany – 1716 Berks Co, PA)  |   |      |   +———Elizabeth Potter (1645 – )  |      George Valentine Clapp (24 May 1702 Weisenheim-Berg, Hesse, Germany – 12 Oct 1773 Guilford Co, NC)  |      +———Anna Margrete Unknown