The American Presidency Project website presents election results from the 1868 presidential election. This site also contains the Republican Party Platform External and the Democratic Party Platform External of 1868.

The UVA Miller Center presents an essay on Ulysses S. Grant's presidential campaigns of 1868 and 1872.

This HarpWeek Web site features political cartoons from Harper's Weekly, Leslie's Illustrated Weekly, Vanity Fair, Puck, Judge, and American Political Prints, 1766-1876: A Catalog of the Collections in the Library of Congress. It provides explanations of the historical context and images of each cartoon, campaign overviews, biographical sketches, a review of the era's major issues, and other valuable information related to the 1868 presidential election.

The National Park Service presents an article on Grant and the 1868 presidential election.