* The Library of Congress: The Library of Congress has an extensive collection of political cartoons from the abolitionist period. You can search their collection online by keyword, artist, or date.
* The Gilder Lehrman Institute of American History: The Gilder Lehrman Institute of American History also has a large collection of political cartoons from the abolitionist period. You can search their collection online by keyword, artist, or date.
* The National Archives: The National Archives has a smaller collection of political cartoons from the abolitionist period, but it does include some unique and rare images. You can search their collection online by keyword or date.
* The New-York Historical Society: The New-York Historical Society has a collection of political cartoons from the abolitionist period that focuses on New York City and New York State. You can search their collection online by keyword, artist, or date.
* The Boston Public Library: The Boston Public Library has a collection of political cartoons from the abolitionist period that focuses on Boston and Massachusetts. You can search their collection online by keyword, artist, or date.