Who are the 42 people on the back of my 2003 series A two dollar bill?

The image on the back of a $2 bill is taken from the painting Declaration of Independance by John Trumbull. The original work had portraits of 47 people, 42 of them being signers of the Declaration. The print used on the back of the $2 bill has some differences from the original work. Only 40 of the 47 people portrayed in the original are on the bill. Those people are:

Benjamin Harrison, Richard Henry Lee, Samuel Adams, George Clinton, William Paca, Samuel Chase, Lewis Morris, William Floyd, Arthur Middleton, Thomas Heyward, Jr.,
Charles Carroll, Stephen Hopkins, William Ellery, George Clymer, Robert Morris, Thomas Willing, Benjamin Rush, Elbridge Gerry, Robert Treat Paine, Abraham Clark, William Hooper, Joseph Hewes, James Wilson, Francis Hopkinson, John Adams, Roger Sherman,
Robert R. Livingston, Thomas Jefferson, Benjamin Franklin, Richard Stockton, Francis Lewis, John Witherspoon, Samuel Huntington, William Williams, Oliver Wolcott, Charles Thomson, John Hancock, George Read, John Dickinson and Edward Rutledge.

The last 2 portraits are of unknown people.