Knowing the Presidents: Abraham Lincoln America's Presidents: National Portrait Gallery

Smithsonian NPG exhibition: the nation's only complete collection of presidential portraits outside the White House.

Abraham Lincoln, American Experience, Official Site

History & Culture - Lincoln Home National Historic Site (U.S. National Park Service)

Knowing the Presidents: Abraham Lincoln America's Presidents: National Portrait Gallery

The Trent Affair: Diplomacy, Britain, and the American Civil War - The National Museum of American Diplomacy

Knowing the Presidents: Abraham Lincoln America's Presidents: National Portrait Gallery

National Portrait Gallery - All You Need to Know BEFORE You Go (with Photos)

10 things you didn't know about our country's past presidents

Abraham Lincoln National Portrait Gallery

The US Civil War. Abraham Lincoln, the 'White Men's President'. Struggles for Liberty. National Library of Scotland

Abraham Lincoln: Biography, U.S. President, Abolitionist

National Portrait Gallery To Install Historic Life-Size Painting of President Abraham Lincoln Ahead of Presidents Day Festivities

Bill O'Reilly: 'Abraham Lincoln Was Our Best Leader' : NPR