Duck family (Disney) strip, Della writes to Donald that the boys had placed a firecracker under their father's chair as a prank and that their father had been sent to the hospital. This was the reason why the boys first showed up at Donald's house. Thereafter the father is generally assumed to have disappeared. In "The Richest Duck in the World", when Scrooge mentions that the few family members he had had disappeared, the boys respond "We know how "that" feels!" Donald's cousin Fethry Duck was created for the Disney Studio Program by Dick Kinney and Al Hubbard and was first used in
Duck family (Disney) twin sister. She was first mentioned in a 1937 "Donald Duck" Sunday strip on October 17, 1937 in which she writes a letter explaining to Donald that she is sending her sons to stay with him. She appears as a child in "The Life and Times of Scrooge McDuck" in which she and Donald are wearing identical sailor suits. Both she and Donald are linked to Scrooge McDuck in equal measure, and yet Donald is always referred to as Scrooge's closest living relative, suggesting she has disappeared or died. In the Don Rosa comic 'Super Snooper Strikes Again', Huey, Dewey