Hi! You have requested information about people in my family tree.I am descended from the Harriet Flint (Daughter of William Flint and Mary Ann Gale) you mentioned.Harriet married Edward Jackson.In a Flint/Jackson family tree book researched by my great aunt the story is that 3 Flint brothers (John, William and Richard) came to Ontario in the early/mid 1800s with their families.On the FLDS site I can find that Robert Flint and Hannah Peach had sons William and Richard, but not John.A third son (George) and a daughter (Jane) are also mentioned but appear to have remained back in Yorkshire.I have been confused about John, as to whether or not he is perhaps a cousin of William and Richard and not a brother.You mentioned that he was married to Sarah Cook.In my family tree he is married to Betty Peach but I have not yet found her relationship to Hannah Peach.My notes say that she is, however, the cousin of Mary Ann Gale. Tracing back from Robert Flint (married to Hannah Peach), I believe I have found his father (Edward) and grandfather (Richard)but that's as far back as I can go. I don't know whether this helps or not since it seems that your John Flint is different from mine. I'd appreciate comparing notes with you!