Daisy Duck
Donna Duck is the first love interest of Donald Duck. She was later replaced by Daisy Duck. According to some sources, Daisy was introduced in 1937 as Donna Duck, yet there is conflicting evidence as to whether Donna was an early version of Daisy or a separate character entirely. However, the fact that The Walt Disney Company released a collector's pin (See #703 on Pinpics.com) in 1999 which states, "Daisy Duck debuts as Donna Duck 1937," solidifies the fact that Daisy Duck and Donna Duck were, in fact, one and the same.