Possible Clues:

• Spokescow since 1938
• Commercial mascot with an honorary Doctor of Bovinity degree
• "Eighth Grade" star Fisher
• Girl, one admitted to East London college
• The girl will appear in heels, I expect
• Man, for example, going west with eastern girl
• She's one in alternative setting
• 'Gosford Park' role
• Bovine at the 1939 New York World's Fair
• Memorable spokescow