Guijsbert Goerttzen Roosa, son of Goert Reyers, was born about 1570 and died before 1630. He married Maria Alerts, daughter of Alart Dircksen and Aricken …,. She was born about 1570 in Netherlands.

Heijman Guijsberts Roosa, son of Guijsbert Goerttzen Roosa and Maria Alerts, was born about 1590 in Herwijnen, Gelderland, Holland and died after 1623. He married Ijken Jans Kuijsten, daughter of Jan Anthonisz Kuijst and Mericken Aert Willemsdr, about 1610 in Netherlands. She was born about 1590 in Andel, Noord Brabant, Holland and died after 1623.

Aeldert Heymans Roosa, son of Heijman Guijsberts Roosa and Ijken Jans Kuijsten, was born in 1621 in Herwynen, Gelderland, Holland. and died on February 27, 1679 in Hurley, Ul. Co. NY. at the age of 58. He married Wilhelmina (Wyntje) Ariens De Jongh, daughter of , in 1642 in Herwynen, Gelderland Holland.. She was born about 1621 in Herwijnen, Gelderland, Netherlands and died on October 28, 1686 in Kingston, Ulster, New York.