Jacques Cornelius "Itsychosaquacha"

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Jacques Cornelius "Itsychosaquacha"'s Geni Profile

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Jacques Cornelissen Van Slyck, "Itsychosaquacha"

Also Known As: "Mohawk name-Itsychosaquachka", "/Itsychosaquachka/", "Jacques", "Itsychosaquacha (Mohawk name)"
Birthdate: (50)
Birthplace: Canajoharie, New Netherland Colony
Death: May 11, 1690 (46-54)
Schenectady, Albany County, Province of New York
Place of Burial: Schenectady, Schenectady County, New York, United States
Immediate Family:

Son of Cornelius Antonissen van Slyck and Ots-Toch
Husband of Margaret (Grietje) Ryckman
Father of Susanna Cornelese Van Slyck; Captain Harmen Jacquesz van Slyke; Geertruy Jacquese Van Slyck; Margareta Jacquese Jacquese Van Slyck; Cornelis Jacquese Van Slyck and 4 others
Brother of Martin Mouris (Maurice) Van Slyck; Beartie Nieffens van Slyck; Elisabeth van Slyck; HIlletje Cornelise Van Olinda; Gijsbert Gerritse (Bertisse) Van Slyck and 4 others

Occupation: Tapster (Tavern Keeper), Trader, 1st liscensed "tapster"
Managed by: Gregory Frank Yochim
Last Updated:

About Jacques Cornelius "Itsychosaquacha"


Mohawk Frontier, The Dutch Community of Schenectady, New York, 1661-1710 by Thomas E Burke, Jr.

pg. 23 " Van Slyck, who was described in contemporary records as "formerly an Indian", was clearly trusted by the Mohawks. " also "Of all the seventeenth-century interpreters, van Slyck may have been the best, and his services were in demand as far away as"

pg 24 " New York City, where in August 1687 he helped to examine "a Christian Maquase brought a Prisonner from Cannada"

Jacques, son of Cornelis Van Slyck, was born in 1640 in Canajoharie; his Indian name was Itsychosaquacha; he was also sometimes called Agues [Aques?] Comllyssen Gautsch. The Mohawks gave him half of the island lying immediately west of the city, also land five miles above the city, on the south side of the Mohawk. This would seem to give color to the tradition that his father married a woman of the Mohawk tribe. In 1671 Jacques Van Slyck was one of the two licensed tapsters of the village. He married Grietje, daughter of Harmen Janse Ryckman, of Albany; after his death in 1690 she married Adam Vrooman. His will was made May 8, 1690. The following children were living in 1697;

1.Harmen. 2.Susanna, married Samuel Arentse Bratt. 3.Grietje, married (first) Andries Arentse Bratt; (second) Harmen Vedder. 4.Cornelis. 5.Geertruy, married Johannes Myndertse. 6.Marten. 7.Helena. 8.Lytje. 9.Lida, married Isaac Van Valkenburg. Of these children, Marten and Cornelis, lived upon the first flat, on land left them by their father, which is still owned by the family.

From: "A History of the Schenectady Patent in the Dutch and English Times," 7: Adult Freeholders — Jacques Cornelise Van Slyck by Prof. Jonathan Pearson

"Jacques was born in 1640, at Canajoharie; his Indian name was Itsychosaquachka; he was also sometimes called Jacques Cornelise Gautsh. He married Grietje, daughter of Harmen Janse Ryckman of Albany and had nine children living in 1697. He died probably about 1690, as his widow made an antenuptial contract 21 Feb., 1691/2, being then about to marry Adam Vrooman. His will was made 8th May, 1690. In 1671, he was one of the two licensed tapsters in the village.

He seems to have had the regard both of the natives and the Dutch and to have had considerable influence with both peoples between whom he acted as interpreter.

At one time he had a house lot in the village probably on the west corner of Washington street and Cucumber Alley, having a front on the former street of about 166 feet and extending back to the Binnè kil. The alley on the north side — 16 feet wide wood measure, — was the passage to the Binnè kil which was crossed by a scow to his farm on the Great island.

This lot passed to his son Capt. Harmen Van Slyck; in 1778, it was owned by Harmanus and Samuel sons of the latter, and still later by James Van Slyck Ryley their nephew, his mother being a daughter of Col. Jacobus Van Slyck.

The first patent for land at Schenectady was made Nov. 12, 1662, by Governor Stuyvesant and confirmed by Governor Nicolls April 13, 1667, — to Sweer Theunissen [Van Velsen] and Jacques Cornelyssen [Van Slyck] to each of them severally the moiety of "a certain Island, — Marten's island — near Schenectady over against the town, etc., containing [82] acres first taking out six acres or three morgens on said island the title to which was vested in said Theunissen, who married the widow of Jan Barentse Wemp to whom and to the said Jacques Cornelise said island was granted Nov. 12, 1662."

After Van Slyck's death, Grietje Vrooman his widow, received a confirmatory patent April 2, 1695 for his moiety of said island in trust for the use of their four sons, — Harmen, Cornelis, Marten and Acus. This island originally belonged to Marten Maurits, Van Slyck's brother, who dying in 1662, it fell to Jacques by inheritance; hence at first it was called Marten's island, afterwards Van Slyck's and sometimes Sweer Theunise's and Wemp's island, all of whom had an interest in the same.

Besides the half island above mentioned, Van Slyck also received a grant of land on the First flat on the south side of the Mohawk river to the west of the village, described in the confirmatory patent of Oct. 30, 1684, as "situate between two creeks, one called Stone creek to the eastward, the other the Platte creek to the westward; — the low land lying along the river side to the south of the Mohawk river and on the north of the land belonging to the inhabitants of Schenectady of which said Jacques is to have forty morgens or eighty acres of the best clearest land lying between said creeks, and also forty morgens or eighty acres of woodland on the west side of the Platte creek adjoining to his arable land along the river side.

The land confirmed by this grant to Jacques Cornelise, is stated to have come to him in right of his mother who was a Mohawk woman. His sons Marten and Cornelis inherited and lived upon this farm which is still in possession and occupancy of the family."

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Jacques Cornelius "Itsychosaquacha"'s Timeline

Canajoharie, New Netherland Colony
Age 22
Canajoharie, , Montgomery, New York, USA,
Age 24
Schenectady, New Netherland Colony
Age 26
Age 28
Schenectady, NY, USA
Age 30
Albany, New York
Age 30
Age 34
Schenectady, , Albany, New York, USA,
Age 45
Schenectady, NY, USA