The American Presidency Project Web site presents election results from the 1888 presidential election. This site also contains the Democratic Party Platform External and the Republican Party Platform External of 1888.

The University of Virginia's Miller Center presents an essay on Benjamin Harrison's 1888 and 1892 presidential campaigns.

The UVA Miller Center presents an essay on Grover Cleveland's 1884, 1888, and 1892 presidential campaigns.

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 1888 presidential election.

U.S. Senate: Historical Highlights. To promote Benjamin Harrison to the presidency, Republicans turned to Senator Matthew Quay, the powerful political boss of Pennsylvania.