Son of Theunis Nyssen and Phebe Sales.

Baptized on 12 April 1654 at Reformed Dutch Church, New Amsterdam, sponsors 12 April 1654 1) Jan 2) Nys sons of Theunis Nyssen.

Jan Theuniszen was a member of the at Reformed Protestant Dutch Church, Flatbush, Kings Co., Long Island, New York, in 1677 from the Ferry. Old Members found here in the 4 Villages in the year 1677. From the Ferry. Jan Teunisz.

Witnessed the baptism of Cornelis Dirckszen Hooglant , son of Dirck Corneliszen Hooglant and Lysbeth Jorise Rapalje, on 7 August 1678 at Reformed Dutch Church, New York City, New York, (witnesses: Jan Theuniszen, Catalina). Cornelis; parents: Dirck Corneliszen, Lysbeth Jonszen; witnesses: Jan Theuniszen, Catalina.

Married Catalyna Teunise Bogaert, daughter of Teunis Gysberts Bogaert and Sarah Jorise Rapalje, at Brooklyn, Kings Co., Long Island, New York, on 16 November 1679 (Betrothed 26 Oct 1679). Jan Teunisz, young man, born at Gowanus, residing at the Ferry of Brooklyn, with Cataline Teunis Boogaard, young lady born and residing at the Wallabout, witness: bride's father; and married the 16th November at Brooklyn.

Jan Theuniszen and Catalyna Teunise Bogaert were members of the at Reformed Protestant Dutch Church, Flatbush, Kings Co., Long Island, New York, on 19 November 1679 "in the Wallabout." Register of the Members from the Four Villages. 19 Nov 1679. In the Wallabout. Jan Teunisz and wife Cataline Teunis Boogaard.

Witnessed the baptism of Jan whose parents are unknown in 1683 at Reformed Protestant Dutch Church, Flatbush, Kings Co., Long Island, New York, (witnesses Jan Teunisz & s.h.v. Trijntje (who also stood in place of the parents)). Jan; Getuijgen, ook in plaats van de Ouders. Jan teunisz, & sijn Huijsvr. Trijntje (Witnesses, also in place of the Parents, Jan Teunisz, & his wife Trijntje). ["1683", complete date not given. Following baptisms begin with 25 March 1683.].

Witnessed the baptism of Annitje Woertman , daughter of Dirck Jansz Woertman and Marritje Teunis Nyssen, on 15 June 1684 at Old First Dutch Reformed Church, Breuckelen (Brooklyn), Kings Co., Long Island, New York, (witnesses: Jan Teunissen, Cathalijntje Teunis). Annitje; parents: Dirck Jansen Woertman, Marritje Teunis.

"Cornelius and John Tunison and Peter and Jerome Van nest emigrated from Long Island and located on the Raritan, near Somerville."

He settled near Somerville, Somerset Co., New Jersey, circa 1687, and was an Elder at the organization of the First Reformed Church of Raritan (Somerville) in 1699. Afterwards, he was a member of the legislative House of Assembly.

"Jan Teuinse and his brother Teunis took the name Van Middleswart, (from Middlebout, or Midwout—Wallabout), and his brother Cornelius that of Teunisen, (now) Tunison) as surnames, and the Van Middleswart and Tunison familes of Somerset county are decendants of these brothers."

Witnessed the baptism of Theunis Denys , son of Denyse Theuniszen and Helena Cortelyou, on 2 April 1692 at Old First Dutch Reformed Church, Breuckelen (Brooklyn), Kings Co., Long Island, New York, (witnesses: Jan Teunissen, Annitje Teunis). Teunis; parents: Nijs Teunissen, Helena Kerteljou.

Witnessed the baptism of Dirck Van Vechten , son of Michiel Van Vechten and Jannetje Dumont, on 19 September 1699 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan and Kataleyne Thuenissen) and married the 16th November at Brooklyn. Hereinafter cited as RDC Flatbush Recs. [S1235] Dirck; parents: Michiell Van Vechten and wife.

Witnessed the baptism of Abraham Tunison , son of Cornelis Theuniszen and Neeltje Teunise Bogaert, on 26 September 1700 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witness: Jan Thuenissen).

Witnessed the baptism of Sara Drinckwater , daughter of Eedvbert Drinckwater, on 11 June 1701 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Thuenissen and wife).

Witnessed the baptism of Elisabeth Volkertse Bries , daughter of Volkert Hendricksen Bries and Elisabeth Paulus, on 19 October 1703 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Thuenissen and wife).

Witnessed the baptism of Jan Dumont , son of Peter Dumont and Femmetje Van Middleswart, on 1 August 1704 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Thuenissen and wife). Jan; parents: Piter de Mont and wife (note: this dates preceeds his birth date as given in a Bible record).

Witnessed the baptism of Kalleyntie Broeckaer , daughter of Jan Brokaw and Sarah Middlesward, on 14 November 1705 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Isaac Van Duyn , son of Abraham Gerretse Van Duyn and Gerrtje Martens, on 3 April 1706 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan and Kaetleyn Teunissen).

Witnessed the baptism of Joris Rapalje , son of Jacob Rapalje and Sara Abramse Brinckerhoff, on 3 April 1706 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan and Kaetleyn Teunissen).

Witnessed the baptism of Femmichjen Broeckaer , daughter of Jan Brokaw and Sarah Middlesward, on 3 August 1707 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Thunnissen and wife, Broekaer).

Witnessed the baptism of Jannetje Kusea , daughter of Antony Kusea, on 28 April 1708 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Thuenissen and wife).

Witnessed the baptism of Jan Merlet , son of Abraham Merlet and Elisabet, on 25 April 1711 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Johannes Boegert , son of Cornelis Boegert, on 25 April 1711 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Gerrit Middagh , son of Dirck Aertszen Middagh and Catalyn Pieterse Van Nest, on 30 April 1712 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Sara Rapalje , daughter of Jacob Rapalje and Sara Abramse Brinckerhoff, on 30 April 1712 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Katarina Hall , daughter of Thomas Hall, on 6 August 1712 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Witnessed the baptism of Femmichjen Van Middelswaert , daughter of Theunis Van Middelswaert, on 28 October 1713 at First Reformed Church, Raritan (Somerville), Somerset Co., New Jersey, (witnesses: Jan Theunissen and wife).

Jan Theuniszen was made an executor of the will of Cornelius Van Houghem on 29 February 1719/20; proved 3 Jan 1721/22. Cornelius van Houghem of Raraton, Sommer Set Co., yeoman. Wife Steintie. Children: Cornelius, Hendry, Christiantie and an "unborn" child. Legacy to Maritia Hendrickson. Executors of real and personal estate: John Teunison, Peter Dumont, Teunis van Middlesworth, son of John Teunison, and John Hendrickson. Witnesses: Abraham van Middlesworth, Philip Folkerse, Alex'r McDowall................Cornelius van Houghem.

Children by Catalyna Teunise:
1. Femmetje Van Middleswart b. 8 Aug 1680, d. 25 Sep 1706
2. Theunis Van Middelswaert b. 16 Jul 1682
3. Sarah Middlesward b. 1 Feb 1685
4. a child Theuniszen b. 5 May 1695
5. Abraham Thuenissen b. 19 Sep 1699

Bio includes data from The Brouwer Genealogy Database.

∼Jan Teunise Nyssen or DeNyse was baptized on Apr 12, 1653/54 with his twin brother Denys at the Dutch Reformed Church in New Amsterdam, New York.
He married Catalyntje Teunisen Bogart on Nov 16, 1679 in the Flatbush Dutch Church, Flatbush, New York. She was baptized on Dec 16, 1657, the daughter of Teunis Gysbertsen Bogaert and Sarah Jorise Rapalje.
Jan resided at Wallabout, taking the oath of allegiance in Brooklyn in 1687. He moved to Raritan, New Jersey about 1690. His name appeared at the organization of the First Church of Raritan on Mar 9, 1699, where he was installed as First Elder.
His descendants and the descendants of his brothers adopted various surnames, including Tunisen, Denyse, and Van Middlesward (from Middlebout, Midwout, or Wallabout).
Jan Teunis Nyssen Van Middleswaert baptized 1654 was first seen with the name Van Middleswaert in 1699. In 1686, Jan bought land in Middlesex County NJ with his brother Cornelius Tunison and they are both last name Tunison and their brother in law Jeronimus Rapalje. In 1699, when Cornelius sold his part of the land to his brother Jan, Cornelius was listed as Tunison and Jan was listed as Van Middleswaert. This is the first time Jan is seen as Van Middleswaert in 1699. This is in the book Colonial Families of NJ which also contains the deed.
The last child Abraham is baptized in Somerset County NJ in 1699. (The others baptized in Flatbush)
The person who bought land at the Brooklyn Ferry in 1723 was probably from the Denys Denyse baptized 1654 family, which is Jan Van Middleswaert 1654's twin brother. Denys Denyse married Helena Cortelyou, and her father Jacques left land to her. Helena left the land to her son Jacques Denyse. Then he left the land to his son Denys Denyse. Jacques' son Denys Denyse was the one that ran the Ferry from Brooklyn to Staten Island.
In 1704, he was elected to the House of Representatives of New Jersey, serving in the Second Assembly in 1704 and the Third Assembly in 1710.
On May 22, 1723, Jan Teunis Van Middleswaerd bought a house and lot at Brooklyn Ferry. He wrote his will in 1742.
The children of Jan Teunise Nyssen Van Middleswaerd and Catalyntie Teunisen Bogart were:
1. Jan Van Middleswaert, bap. 1679, m. Pieterneltje Bogaert
2. Femmetje Tunisen, bap. Aug 5, 1680, m. Peter Dumont, d. Aug or Dec 25, 1706
3. Teunis Van Middleswaert, bap. Jul 16, 1682, m. Susannah (Beekman?)
4. Sarah Tunisen, bap. Feb 1, 1685, m. Jan Brokaw in 1704
5. Abraham Tunisen, bap. Sep 19, 1699
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