+———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  |      George Tobias Clapp (18 Jan 1735 Oley, Berks Co, PA – )  |      +———Anna Barbara Stiess