Gerrit Elbertszen Reyerszen

From "The Ryerse-Ryerson Family" by Phyllis Ryerse and Thomas Ryerson, Copyright 1994:

Two things become clear REIJER was a common name and - considering the Dutch use of patronymics - not everyone who had the name was necessarily related. This became abundantly clear as we researched Gerret Ryerse, a lawyer who lived in Albany, New York in the late 1600's. He led an eventful life and we felt sure he was a "cousin" - but instead, we discovered that he was the son of Ryer Elbertson... of no relation to us at all. We are still unsure of any familial connection to Jan Reijersz who came from near Utrecht, Holland to Beverwyck (Albany,New York) in 1637 and took over the lease of an island in the Hudson River near Bethlehem which came to be known as Jan Ryersons Island...

he is not listed among the children

Name: Reijer REIJERSZ

• Birth: 1604 in Amsterdam, Noord Holand, Netherlands
• Death: in Amsterdam, Noord Holand, Netherlands
• Occupation: Rope maker
• Father: Reijer of AMSTERDAM b: ABT 1574 in Amsterdam, Noord Holand, Netherlands
• Marriage 1 Marritje FRANCEN b: 1601 in Swindrecht, Holland
• Married: 26 JAN 1631 in Niewe Kirk, Amsterdam, Noord-Holland, Netherlands
• Children
• Marten RYERSON b: 23 NOV 1637 in Holland, Netherlands
• Geertruid Reijersz b: 1639 in Holland, Netherlands