This version of the Duck family tree, including nearly all of the Duck relatives and created by Carl Barks (with the exception of Susiebelle Swan and Mehitabel Mudhen), features three main "trunks": the Clan McDuck, the Duck Family proper, and the Coot Kin. Inspired by Carl Barks's second Duck Family Tree and Mark Worden's Duck Family Tree, it incorporates characters from the latter while using the family relations from the former, with the additional change that Gus Goose's mother Fanny is, to Rosa, a niece of Elvira Duck rather than a daughter of hers.
Due to publisher interference, Fethry Duck was added to the tree despite Rosa's unwillingness to include Fethry's existence in his headcanon, while Ludwig von Drake was instead absent.
Rosa created two other Duck Family Trees. Don Rosa's Duck Family Tree Sketch is the first draft of what would become the present tree, also including birth dates and a few more characters and thoughts. Don Rosa's second Duck Family Tree is a remake of the tree, sold as a print at conventions, where Ludwig von Drake is present as Matilda McDuck's husband and Mr Duck's face is not obscured (although his name remains blank).
Additionally, Michel Nadorp's Duck Family Tree, Chris Moreno's Duck Family Tree, and Donald Duck's Big Family are all close remakes of Rosa's tree with a few details altered.