I am looking for relatives of John Colfer Sr. He lived in Brooklyn New york and had 4 kids; Barbara, Grace, Freancine and Jack (john Jr). I am the daughter of Jack and am trying to put it all together. My grandfather has a brother Edward who lives in Florida. I have heard stories that I have a half sister Joyce and that my dad may possibly have a half brother. I believe my granmothers name was Marion. If anyone can help in this hunt, please feel free to contact me.