Smith, Dean Wesley. "A Bubble for a Minute"
Divergence: 1932 CE
What if: Wallis Simpson fell in love with FDR rather than the King of England.
Summary: A high-school kid interviewing old Mrs. Simpson at the old folks home finds reality changes as she changes the details of her life story.
Published: In By Any Other Fame (eds. Mike Resnick and Martin H. Greenberg), q.v.