Which Woman Should Replace Andrew Jackson On $20 Bill?

(CBS SF) -- Barbara Ortiz Howard is on a mission to kick Andrew Jackson off the $20 bill and replace him with a woman.

"There are no women on the money and I thought 'gee, this is a crazy omission,'" Howard told CBS News.

Aside from Lady Liberty, the only woman who was ever featured on American paper currency is Martha Washington on an 1886 silver certificate. But she also believed that the greatest women were simply the ones married to the greatest men.

There hasn't been a change on the faces of American bills since 1929, when Andrew Jackson beat out Grover Cleveland. Perhaps an odd pick for a president who disapproved of paper currency.

Now after long hours of research, Howard and some friends came up with a list of 15 women who made extraordinary contributions to society.

The American public is invited to vote on the website WomenOn20s.com. When they narrow it down to one woman Howard says they'll ask President Obama to create a new $20. The goal is to have it in circulation by the year 2020 -- the 100th anniversary of a woman's right to vote.

Last year, the President said he got a letter from a young girl asking him to put a woman on U.S. currency. He said he thought "it was a pretty good idea."

What do you think?