Willem Abrahamse Tietsoort was born Feb 8 1648 he was the son of Abraham Willemszen Tietsoort. His brother was Abraham Abrahamse Tietsoort. His mother was Aechtje Agatha Jans Van Naarden. He was christend August 2 1648 in New York City New York and Died about 1722 in Dutchess Co. New York, In the New York land papers vol.4 pg. 104 appears a petition acted upon Sept 10 1707 of Willem Tietsoort. He describes himself as a blacksmith of Ulster Co. New York . He states that in the year 1690 He was suddenly attacked by a party of French and Indians. The fearful massacre which ensued int the bitter cold of winter almost wiped out the population there. Willem himself was severely wounded but fled with his daughter to Esopus (now Kingston) . From exposure to the extreme cold his daughter lost the use of her legs and this was her condition in 1707 . Seventeen years later at Esopus, Willem was well received by the indians. They gave him a tract of land in an elbow of the Delawareand he received a license to purchase it fro the Earl of Bellamont, 15 Oct 1698 and a deed for it from the indians, June 30 1700 . He was probably the first white settler at Minisinkk or Port Jervis portion of the Delaware at Schenectady he had lived among the Indains for 22 years. He married Neeltje"Nelly" Swart about 1669 in New York Dutch Church Ulster co. New York. they had 11 children.