A one-dollar banknote/Federal Reserve Note (bill) = 1 dollar
George Washington the 1st president of the United States of America

A five-dollar banknote/Federal Reserve Note (bill) = five dollars
Abraham Lincoln, the 16th president of the United States of America

A ten-dollar banknote/Federal Reserve Note (bill) = ten dollars
Alexander Hamilton the 1st Secretary of the Treasury of the United States of America
 

A twenty-dollar banknote/Federal Reserve Note (bill) = twenty dollars
Andrew Jackson the 7th president of the United States of America

A fifty-dollar banknote/Federal Reserve Note (bill) = fifty dollars
Ulysses Simpson Grant the 18th president of the United States of America