Marriage 1 Mayke CORNELISE b: in Barnevelt, Holland
Married: in probably Netherlands
Children
Gertrude Martissen YSSELSTEYN b: C 1666 in Claverack, Columbia County, New York
Jannetje Martinese YSSELSTEYN b: in Claverack, Columbia County, New York
Cornelis Martens YSSELSTEYN
Pons YSSELSTEYN
William YSSELSTEYN
Machiel YSSELSTEYN
Jacobus Middauh YSSELSTEYN b: in Claverack, Columbia County, New York
Cornelia Martinsen YSSELSTEYN b: in Claverack, Columbia County, New York
Marritje Marritse YSSELSTEYN b: in Claverack, Albany County, New York
From Ulster County, New York Probate Records, Volume I (page 53-54) outlines the joint will written in Dutch for Martin Cornelisz Ysselsteyn, dated August 13, 1685. The following is a brief overview: Martin appeared before Robert Livingston, secretary. Martin was residing in Claverack. The beginning of the will is a long religious preamble. The survior of the marriage would be the sole heir of all goods, real estate and movable, lands, houses, barn, cattle, negotiable paper, money, gold, silver, jewels, clothing, linen, wool, household goods, and everything else. And when that survivor dies, it is the testator's wish that the estate shall be divided equally among their seven children: Fannerie, wife of Hendrick Cornelis Bogard; Jaeren age 28; Cornelius age 26 Teuntie, wife of Livinus Winne; Geertruy; Marytie; Cornelius and Jacob Martense. The will continues with more. Martin and Maeyke made their "mark". Hendrick Bogart of Marbletown appeared before Jan Mattyse and Jan Heermanse, Justices of the Peace, both witnesses being dead, and the will was probated by June 19, 1699. He was the first of the Ysselsteyn line in America. He was a Captain. He was one of the original 14 founders of Schenectady, later moving to Claverack with his wife. There is a private family burying ground on the property at Claverack in Columbia County.
It is believed they married in Holland. He was one of the first settlers of Schenectady, New York. He died before 1705. He sold his farm in Schenectady and moved to the Claverack in New York. He sold it to Claes Van Petten. Claverack is now in Columbia County, but it was then in Albany County. He made his will in Claverack in January 1677.
Marten Cornelisse Esselsteyn (Ysselsteyn) 
