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) and an unnamed father. Phooey Duck is a tongue-in-cheek name for a non-existent fourth nephew of Donald Duck who was sometimes drawn by accident. The name was coined by Disney comic editor Bob Foster. "Aw, phooey" is also one of Donald's catch phrases. Dugan Duck is Fethry Duck's nephew who is a little bit younger than Huey, Dewey and Louie. According to the Brazilian comic story "O Nascimento Do Biquinho", he is the first nephew of Fethry, being son of his sister, who lives in the periphery of Duckburg. Dugan originally owned yellow feathers, an uncommon characteristic for Disney Ducks