The Andrew Johnson National Historic Site is the location of Johnson's home in Greeneville, Tennessee. This National Park Service site contains information about visiting Johnson's home and gravesite, as well as educational material such as a timeline and information about his impeachment trial.

The Avalon Project presents the full text of the book History of the impeachment of Andrew Johnson President of the United States by Edmund G. Ross.

Presents a brief biography, a listing of research collections, and a selected bibliography related to Andrew Johnson.

This site contains more than 200 excerpts from Harper's Weekly concerning Andrew Johnson's impeachment, including editorials, news articles, illustrations, and political cartoons.

Published by the Tennessee Historical Society, the Tennessee Encyclopedia contains a biography of Andrew Johnson.

This site from the Tennessee State Library & Archives contains photographs, letters, broadsides, and ephemera relating to the 17th President of the United States.

The Miller Center of Public Affairs at the University of Virginia presents essays about Andrew Johnson and his life before, during, and after his presidential terms.

Presents a history of the impeachment trial of Andrew Johnson, including a chronology, votes, and the names of House Managers and defense attorneys.

The official White House Web site presents a brief biography of Andrew Johnson and his wife, Eliza McCardle Johnson.