>>103807449>>103807561Donald's mother and father appeared a ton, I'm sure, but often not as actual characters and just as random designs of "old duck man old duck woman" for the purposes of specific flashbacks and without any continuity. Only with Don Rosa's work (based on fan work and personal notes from Carl Barks on the family tree of the ducks) in the 90s were they more explored as actual characters, with Donald's mother in particular being a recurring character in a lot of stories about Scrooge's life- she's named Hortense and has a really short temper, while Donald's father is named Quackmore and is the son of Grandma Duck, and also has a really short temper. In the new show they keep the same names, it seems, but their designs are different, more based on the fan-made family trees I mentioned that Don Rosa was inspired by.
In terms of the family tree, nowadays, the only really big mystery is who's HDL's father, because he's never even been given a name (unlike Della who was a non-character for 6 decades but at least was a name).