The $5 bill has Abraham Lincoln (1809-65), the 16th U.S. president, on the front. His phrase in the Gettysburg Address, "government of the people, by the people, for the people" is famous.
The $10 bill front has an image of Alexander Hamilton (1755-1804) on it. He was one of the Founding Fathers of the United States. "Hamilton" based on his life is a Broadway's hit musical.