Donald Duck universe
Donald Duck and his maternal uncle Scrooge McDuck received nearly equal exposure in comics. Other primary characters include Donald's three young nephews Huey, Dewey, and Louie, and girlfriend Daisy Duck.
Duck family (Disney)
Luke Goose (sometimes called Luke the Goose) is the father of Donald's cousin Gus Goose. He was originally supposed to be Gladstone Gander's father, Daphne Duck's husband and Gus's uncle, but Carl Barks later changed his mind, making Goostave Gander (who was originally Gladstone's adoptive father after Luke and Daphne "overate at a free-lunch picnic") Gladstone's biological father and Daphne's husband. Luke the Goose disappeared from the tree.