JACOB CASPERSE, an adult by 1677, must have been born in the early 1650s as the oldest son of Casper Jacobse. Probably in the late 1670s he married Hendrickje Hans Dreeper, daughter of Hans Dreeper and Marytie Pieters, who - while still living at New Amsterdam - had a child Hendrick baptized 29 August 1654; this may have been a clerical error for Hendrickje. Hans Dreeper and two of Jacob's children were murdered 29 July 1682 by Jacob's negro, who cut their throats. Hendrickje may have been the Dirkie, widow Hallenbeck, of Albany in 1726.
On 14 September 1677 Jacob exchanged the island bought of Woulter Aertsz Rademaker (van Nieukirk) for Jan Albertse Brat's land on the Normankill, and on 2 November 1682 exchanged the Normankill farm with Symon Volkertse Veeder for a lot called De Hoeck and half a lot at Schenectday, signing his name. Jacob sold De Hoeck 8 June 1687 to Jan Jansen Bleeker. On 16 December 1682 he bought half a boat from Barent Harmensz Vischer, the other half being owned by Jan Andriesz Douw. They each made four trips to New York with it in 1684. Jacob apparently contracted to buy the other half of this "open boat," and Jan sued him 2 December 1684 for a payment. The debt was adjusted 27 January 1685. In 1685 he held a barn raising. In 1687 Maria Van Rensselaer wrote of Casper Jacobse: "the pasture rents for 3 beavers and the old man can not manage it, so his son desires to take it over." In 1688 Jacob Kasperse renewed his request to buy the pasture.
His name appears in the inventory of legal papers of notary Jan Becker taken in 1698. On 28 November 1677 at Albany he witnessed the will of Hendrick Williamse, the second husband of Gysseltie Alberts Brat. The will mentions Jacob's brother-in-law Hendrick Lansing, whose sister Hilletie married Gysseltie Brat's brother Storm van der Zee.
From Teunis Tappen he bought Klinkenberg 6 September 1694. He was resident there 22 August 1699 when he was cited for nonappearance before the justices in Albany on a warrant issued to him as constable and collector of the Coxsackie-Catskill area. The 1697 census places him in Rensselaerwyck with five children.
HALENBECK FAMILY OF NEW YORK by Robert Vincent Anderson - National Genealogical Society Quarterly - v.65; no.2; page 101