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Carolyn Thompson, Associated Press
FILE - In this Monday, Aug. 31, 2015, file photo, a woman holds a sign supporting Harriet Tubman for the $20 bill during a town hall meeting at the Women's Rights National Historical Park in Seneca Falls, N.Y. A Treasury official said Wednesday, April 20, 2016, that Secretary Jacob Lew has decided to put Harriet Tubman on the $20 bill, making her the first woman on U.S. paper currency in 100 years.

WASHINGTON — Treasury Secretary Jacob Lew has decided to put Harriet Tubman on the $20 bill, making her the first woman on U.S. paper currency in 100 years, a Treasury official said Wednesday.

The official, who spoke on condition of anonymity in advance of Lew's official announcement, said that the 19th century abolitionist and a leader of the Underground Railroad, would replace the portrait of Andrew Jackson, the nation's seventh president.

Lew's announcement is expected to provide details on other changes being made to the $20, $10 and $5 bills.

The decision to place Tubman's portrait on the $20 likely means that Lew has decided to keep Alexander Hamilton on the $10 bill, a victory for those who had opposed his initial plan to remove Hamilton.