I too am a decendent of Joost Caspar Springsteen. My father was James William Springsted of Brooklyn son of James William Springsted of New York City decended from James C. Springsted also NYC. His father was James (Kobus) Springsted, Tappan NY son of James (Kobus) Springsted Of Albany NY, son of Jacobus Springsteen also Albany NY, son of Reyer Springsteen of Schenectady NY, son of Casparus Springsteen Newtown Long Island, son of Joost Caspar of Groenengar, Holland.This information is from my father's Holland Society of New York papers. I have all the birthdates and marriages. Am interested in any information you can share. There is a handwritten book at the New York Public Library with the family history which can not be copied. I have read it and would like to find a way to Photograph the pages.