Tolong jelaskan mengenai Catatan dari Harper's Weekly

Halloran, Fiona Deans (2012). Thomas Nast: The Father of Modern Political Cartoons. Chapel Hill, NC: The University of North Carolina Press. ISBN 978-0-8078-3587-6.

Prettyman, Gib (2001). "Harper's Weekly and the Spectacle of Industrialization," American Periodicals, vol. 11, pp. 24-28. In JSTOR

Virginia Civil War Archive – online images including those illustrations in Harper's Weekly during 1861–1865 that relate specifically to the Commonwealth of Virginia and its part in the Civil War.

Access for Issues 1861–1865 via sonofthesouth.net