LAMBERT JOCHEMSE VAN VALCKENBURCH (Valckenburgh, Valkenberg, Valckenborch), born at Valkenburg in Dutch Limburg, on the Geule River, seven miles east of Maestrict, in Holland, appears first of record in America, July 29, 1644, when he purchased from  Jan Jacobsen, a house and plantation on the island of Manhattan, with twenty-five morgens of land adjoining. [Register of the Provincial Secretary of New Netherland, II, 121.]