New Yorker Magazine: A Campaign to Put a Woman on the Twenty-Dollar Bill
If you were going to do this, two questions:
1) Which woman would you choose?
2) On which bill?
(FWIW, I don't see that it has to be an American woman, although that would seem far more likely.)
I'd choose Rosa Parks; and I'd put her on the $50, instead of Grant. Between Grant and Jackson, the latter was far more consequential. Plus, he represents a period of history that is otherwise overlooked.
What are your answers?