Eudora Welty and Eudora E-mail: How Eudora e-mail got its name.
For Inventor of Eudora, Great Fame, No Fortune: Biographical article from the New York Times on Steve Dorner, creator of Eudora. Requires free registration.
TidBITS: InterviewBITS with Steve Dorner: Interview with the creator of Eudora on the capabilities of and changes in version 4.3.