US Currency Quiz Guide (Banknotes)

We're onto the big bucks now. There is a ton of dollar-related trivia out there so I'm restricting this guide mainly to the notes themselves. However, at the bottom, I am including a list of countries that officially use the U.S. dollar in addition to the U.S. and its territories. The dollar (code - USD) was first issued in 1792 with the first notes being issued in 1861, and it is the most used currency in international transactions.

Persons in bold and underlined are also featured on U.S. coins. All bills feature the phrase 'In God We Trust' on the reverse by a law of 1955.

Notes

$1
Nicknames: Buck, bill, bone
Colour: Green
Obverse: George Washington, 1st President and American Revolution General (25 cents)
Portrait by: Gilbert Stuart
Reverse: Great Seal of the United States
Info: The $1 bill uses the oldest reverse design in the world

$2
Colour: Green
Obverse: Thomas Jefferson, 3rd President and Declaration of Independence draftee (5 cents)
Reverse: Trumbull's Declaration of Independence
Info: The $2 is so rarely used that some Americans consider them to be unlucky

$5
Nicknames: Five-spot, fin
Colour: Purple, light blue (obverse), Green (reverse)
Obverse: Abraham Lincoln, 16th President and Civil War leader (1 cent)
Portrait by: Matthew Brady
Reverse: Lincoln Memorial

$10
Nicknames: Sawbuck, Yellow, Tenner, Ten-spot
Colour: Yellow/Orange
Obverse: Alexander Hamilton, 1st US Treasury Secretary, 1789-1795
Portrait by: John Trumbull
Reverse: U.S. Treasury Building
Info: Only currently minted U.S. currency to feature someone born outside the modern United States (Hamilton was born on Nevis, now the modern Caribbean nation of St Kitts and Nevis)

$20
Nicknames: Double sawbuck
Colour: Green

Obverse: Andrew Jackson, 7th President (1829-1837), U.S. Army General
Portrait: Thomas Sully
Reverse: White House
Info: Jackson is the only U.S. President to date during whose term the U.S. had no national debt

£50
Nicknames: Grant
Colour: Beige (I think) with hints of red, green, yellow and blue
Obverse: Ulysses S. Grant, 18th President and victorious Civil War Commanding General
Reverse: U.S. Capitol (Congress)
Info: In 2005, Congress put forward a proposal to replace Grant with Ronald Reagan

$100
Nicknames: Benjamins (hence 'Rolling in the Benjamins'), C-notes
Colour: Light blue
Portrait by: Joseph-Siffred Duplessis
Obverse: Benjamin Franklin, Founding Father, statesman and inventor (lightning rod, bifocals)
Reverse: Independence Hall
Info: Only note to feature a building on the reverse that is not in Washington D.C. (Philadelphia)

Denominations of note higher than $100 ceased to be printed in 1946, and were eventually removed from circulation by Richard Nixon in 1969, due to concern over their frequent use in organised crime.

Just briefly, in addition to the U.S and its territories, the U.S. dollar is used in several other countries and territories including some U.K. ones. Below are the countries that officially use it:

Central America: El Salvador, Panama (alongside the balboa)
South America: Ecuador
South East Asia: East Timor

In these British Territories it is the unofficial sole currency: British Virgin Islands, Turks and Caicos Islands

So there we go, probably enough for now. Let me know if I've left off anything glaring/made any tremendous mistakes. More information can be found here.