I am descended from the Huguenot family of Jacques Cossart and wife Lea (Lydia) Willems/Villems (various other spellings for both). They are Cossart-2 and Willems-2. I descend through their son Anthony (Cossart-9) and his wife, Lysbeth Tymensen Valentine (Valentine-45), whose father, Jan Tymensen Valentine (Valentine-44) was probably born 1649 near present-day Schenectady, NY, and his wife, Catherine Tamanizer (Tamanizer-1), born about 1653 in Brooklyn.
My main contribution will be entering children and descendants of Jacob Cossart (Cossart-156) whose children mostly used the name Cozad, and his wife Anna Cox (Cox-258). I have a mimeographed copy of an old book, compiled by William Pearl Cozad, printed in 1900, giving the families of most of the descendants of Jacob and Anna (Cox) Cozad, with supplements from the 1970s and 1980s by Truman Jenks and Robert Merrill of Chillicothe, Ohio. This may help other descendants connect to this ancient familly.