Who Should Appear On Your Money?: On Women and Currency

Hey Risen readers! If you didn't already catch on, March eighth was International Women's day, and March is Women's History Month! In honor of every amazing girl out there, I'm writing about something I've recently become interested in. 
In light of the recent events of the presidential race, I would like to bring up a question that has been asked of several candidates: "If you could choose any women who deserves to be on United States currency, who would it be?" GOP Candidate Ben Carson went with his mom, democratic candidate Bernie Sanders with his wife, and so on.
This is, of course, an interesting question for democratic and republican candidates alike, but I think it's an interesting topic even beyond these circumstances. 
For the last hundred years and then some, men have been the figurehead of our currency, from Andrew Jackson on your twenties to Abraham Lincoln on that penny you found in the parking lot. But the real question remains: what woman deserves to appear on our currency? There are too many to count. If you ask anyone, you'll have answers ranging from activist Rosa Parks, to philanthropist Audrey Hepburn, to poet Maya Angelou, to scientist Marie Curie, to the first female congresswoman Jeanette Rankin, and an endless variety of mothers,  daughters, sisters, and wives. 
Although one variation of the dollar coin currently holds the image of Native American explorer and leader Sacagawea, it is not often used, and is one face out of infinite others. Ten countries, including England, Canada, the Philippines, and Syria already feature impressive women on their money, and it's been a subject of conversation in the United States for decades, so why hasn't it changed?
The month of March is about celebrating the amazing qualities of women everywhere, but our currency should recognize them just as much. 
In a sea of male-dominated bills and coins, which outstanding woman do you think should appear on our currency?
Photo source: telegraph.co.uk