It is an 'authentic' story if it is a story that was really told by someone. That doesn't mean it is a true story; it could even be entirely and deliberately false. I posted online [not at Ancestry] my grandfather's written recollections of his boyhood on a Wisconsin farm. Are they authentic family stories? Yes, they are authentically his words but there is no guarantee that he recalled things with 100% accuracy. I also have a newspaper article published in various US papers and in Australia [cousin Beulah shipwrecked, attacked by cannibals, sees eleven sailors killed and eaten, barely escapes with her life through the fortuitous intervention of a German gunboat]. Is it an authentic family story? Yes, it is. Those things really were written about Beulah, they were part of her mystique as an inspirational speaker on missionary life, but they were probably 100% fabricated.