Novelist Natalie Danford comes from "a family of great mythologizers."
My paternal grandfather created this whole story that he had come over here when he was 12 and that he didn’t speak any English and pulled himself up by his bootstraps. Many years ago, after the Ellis Island records went online, my father idly punched in his own father's name and it turns out that my grandfather came here when he was three with his entire family.
On my mother's side, we always thought that my great-grandfather left Russia because he didn't want to be conscripted into the Czar's army, obviously a pretty bad deal if you were Jewish. One of my mother's cousins did genealogical research in the late 1970s; it turned out that he actually killed somebody and hopped a boat. [Link]