Over the years I've seen various "completed" Collins family trees. Some attempt to include all the various outliers and fill in the blanks between generations that we didn't really get too much information from the show about. It's always interesting to me to see people's different takes on the family tree and what might've occurred between the generations we know about. Just like many other topics under the Dark Shadows umbrella, a "complete and official" family tree is something we will probably never have. But it sure does make speculating that much more fun!