Over 1200 original editorial cartoons drawn for the Chicago Daily News, correspondence, clippings of editorial cartoons and printed material including an item produced by the Sam Adams Committee of Public Safety
Over 1,000 pieces of original cartoon artwork including material from the Syracuse Post-Standard, comic strips, original artwork by other cartoonists, biographical material, photographs, newspaper and magazine clippings, proofs, posters, and a scrapbook.
Over 1,500 pieces of original artwork for editorial cartoons drawn for the Sioux City Journal, proofs, correspondence and clippings and reprints. Includes one magazine article in French.
Approximately 2,600 original editorial cartoons syndicated through the McNaught Syndicate and published locally in the Arizona Republic and artwork for single panel cartoons, Little Itchy Itchy, The Little Savage, The Ordinary Americans and Oh Say Can You See--?. Correspondence, book illustrations and articles about Manning are also included.