All US bills carry the signatures of the Secretary of the Treasury and US Treasurer who were in office when the bill's series was first printed.
As of 02/2012, the Secretary of the Treasury is Timothy Geithner and the Treasurer is Rosie Rios.
Benjamin Franklin is on the US $50 bill.
Alexander Hamilton is on the 10 dollar bill because he was the first Secretary of Treasury.
President Thomas Jefferson
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Salmon P Chase
The first US president, George Washington.
It is not George Washington. He is on the US 1-dollar cotton bill.
The US $50 bill shows a picture of President Ulysses S. Grant.
The US didn't print any $100 bills dated 1935. Please check again and post a new, separate question. Include the letter, if any, that's next to the bill's series date because that will help to determine whose signatures it would carry.
Lincoln's picture is on the $5 bill, not his signature. US bills are signed by the Secretary of the Treasury and the US Treasurer.
Benjamin Franklin on the 100 dollar bill.
Salmon P Chase