"Anthony Cossart brought his wife, Bydia Williams, and 2 children of 18 months and 5 years. They had also Jacob, born 1668; David, 1671; Anthony, 1673. Jacob married, 1695,
Anna Maria, daughter of Joh. Caspars Springsteen. Anthony, who married, 1696, Elizabeth, daughter of "Jan Tymensen Valentine", of Schenectady, were residents of Brooklyn; their posterity bearing the name Cashow or Carshow. Jacob Cosart, born at Brooklyn, 1701, a son of Anthony, died at Bound Brook, N. J., April 19, 1772. David Cosart, married, 1696, Styntie, born 1677, daughter of Joris Jansen Van Hoorn, and had, with other children born in New York City, sons George, Jacob, David, John, Francis. He died between 1736 and 1740, in Somerset County, N. J., leaving..."
Sources
Source: S12 UPD 27 JUL 2012 23:27:51 GMT -0600 Title: Family site (Family Tree Legends) Text: MyHeritage.com family tree Family site: Family site (Family Tree Legends)</p>Family tree: 175865511-1 Type: Smart Matching Media: 175865511-1 Page: Jan Tymensen Valentine Quality or Certainty of Data: 3 Data: Date: 28 JUL 2012 Text: Added by confirming a Smart Match Event: Smart Matching Role: 1000011
Source: S21 UPD 28 JUL 2012 19:56:29 GMT -0600 Title: Davis Web Site Text: MyHeritage.com family tree Family site: Davis Web Site</p>Family tree: 136980561-2 Type: Smart Matching Media: 136980561-2 Page: Jan Tymensen Valentine Quality or Certainty of Data: 3 Data: Date: 28 JUL 2012 Text: Added by confirming a Smart Match Event: Smart Matching Role: 2040089
Source: S22 UPD 28 JUL 2012 19:58:22 GMT -0600 Title: Stoneking-Swisher, et al. Family Tree Text: MyHeritage.com family tree Family site: Stoneking-Swisher, et al. Family Tree</p>Family tree: 121724521-18 Type: Smart Matching Media: 121724521-18 Page: Jan Tymensen Valentine Quality or Certainty of Data: 3 Data: Date: 28 JUL 2012 Text: Added by confirming a Smart Match Event: Smart Matching Role: 18002355
Acknowledgments
This person was created through the import of 124-DeCoursey.ged on 13 September 2010. Reference: 01386
WikiTree profile Valentine-412 created through the import of 11-2012 gedcom.ged on Nov 15, 2012 by Lee Casad. See the Changes page for the details of edits by Lee and others.
Valentine-631 was created by Jessica Bindner through the import of condensedgedcom.ged on Jan 11, 2014.
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DNA Connections
It may be possible to confirm family relationships with Jan by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Jan:
I am still interested in the area in the 1649 time period, before the above political bodies existed. Thank you so much for the link to Gehring's book. It appears to go into more detail about the earlier period than I have found so far. This is a big help.
Then you will find Reynolds useful also: https://catalog.hathitrust.org/Record/006688096 . I've also put together a 17-page timeline for that area. If you send me your email address in a private message, I will share it with you.
According to Wikipedia under "Albany, New York, History, Colonial Times to 1800," in 1649, Jan Tymerson Valentine would have been born in the Fort Orange area, before the existence of Schenectady.
edited by Jim Moore
Gehring, Charles T., "Introduction" to Fort Orange Court Minutes, 1652-1660, Vol XVI, part two, New Netherland Documents Series. Syracuse, NY: Syracuse University Press, n.d. https://www.newnetherlandinstitute.org/files/5414/0284/1848/Fort_Orange_Court_Minutes_1652-1660.pdf.