1.) According to the cartoon "Donald Gets Drafted" (1942), Donald's full name is Donald Fauntleroy Duck (his middle name appears to be a reference to his sailor hat, which was a common accessory for Fauntleroy suits).
2.) Donald's father is Quackmore Duck, his mother is Hortense McDuck and his twin sister is Della Thelma Duck.
3.) One of Donald's great accomplishments was building his own car from spare parts.... a 1934 Belchfire Runabout. It had license plate number 313. While Donald did on occasion drive other cars, this one would stay with him throughout the years constantly breaking down.
4.) During World War 2, Donald tried to do his patriotic duty by joining the army, however he was unable to pass the physical. According to the army, Donald had flat feet and an inability to distinguish between the colors green and blue.
5.) Donald Duck was named an honorary alumnus of the University of Oregon.