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
The Oregon Duck chose Donald as the official mascot by a 2–to–1 margin. Beginning in 1940, cartoon drawings of Puddles in student publications began to resemble Donald Duck, and by 1947, Walt Disney was aware of the issue. Capitalizing on his friendship with a Disney cartoonist, Oregon athletic director Leo Harris met Disney and reached an informal handshake agreement that granted the University of Oregon permission to use Donald as its sports mascot, naming him Donald Duck. When Disney lawyers later questioned the agreement in the 1970s, the university produced a photo showing Harris and Disney wearing matching jackets with an Oregon Donald