Duck family (Disney)
Huey, Dewey, and Louie Duck are Donald's three nephews and identical triplet sons of Della Duck and an unnamed father.
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.