Daisy Duck Once Upon a Christmas", "Mickey's Twice Upon a Christmas", and "". According to the unofficial timeline of Don Rosa, Daisy was born in 1920. According to Rosa, Daisy is the sister of Donald's brother-in-law – Daisy's brother had married Donald's twin sister, Della Duck, and together, the two became the parents of Huey, Dewey, and Louie Duck. This is his explanation of why the triplets tend to call her "Aunt Daisy" while no such courtesy is given to Gladstone Gander for example. Don Rosa has said that he considers Donald and Daisy to be nonrelated and that Duck simply is
Duck family (Disney) the Goose disappeared from the tree. When Don Rosa created his Duck Family Tree, he used Luke Goose (removing "the" from his name) and made him the husband of Fanny Coot and Gus Goose's father. Gus Goose is Donald Duck's second cousin, and the great-nephew of Grandma Duck. He debuted on 9 May 1938 in Al Taliaferro and Bob Karp's newspaper comic based on Donald, before making an animated appearance in the 1939 short "Donald's Cousin Gus". Gus's main personality traits are laziness and gluttony. Within Disney comics, Gus is usually shown living as a farmhand on Grandma Duck's farm