Herman Op den Graeff: 1585 – 1642

November 26, 1585 – December 27, 1642 The Op den Graeff family – a name that in historical records can be seen as being spelled Opdegraf, Updegrave, Updegrove – is an old Dutch Mennonite family from Cleve and Crefeld. Herman Op den Graeff was born on November 26, 1585 in Aldekerk, Kleve, Nordhein-Westfalen, Germany. In…
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Note On The Founding of Germantown

Note About William Penn’s Invitation To The Thirteen Families In historical notes, it is sometimes mentioned that William Penn invited the first Thirteen Families of Germantown to settle in Pennsylvania. In other historical notes, it mentions that there is no record of this invitation, and that it is probably inconceivable that the invitation could have…
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Isaac Hermans op den Graeff: 1616 – 1679

Isaac Hermans op den Graeff, was born on February 22 in 1616 in Krefeld, Germany. He married Margaretha ‘Grietgen’ Peters/Doors around 1643 and they converted to Quakerism in 1679/80 with his entire family. Isaac emigrated to Philadelphia on The Concord with his wife and three sons, Herman Isaacs, Derick Isaacs and Abraham Isaacs (our 9th…
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