I had seen a book of Dr Suess' political cartoons at the Newseum last year and now courtesy of
io9, I found out that the University of California at San Diego has made them available online. They are savage. Also, predictably, with regard to depictions of the Japanese, horribly racist. It's always interesting to see how cartoonists differently depicted the "enemy Asian" (Japanese) and the friendly Asian (Chinese). While by no means excusing the problems, Suess is biting in his attacks upon racism, antisemitism, Nazis, appeasement, isolationism, and other issues and institutions.
Here are three, and do check out
the rest of the collection:
Ho hum! When he's finished pecking down that last tree he'll quite likely be tired
published by PM Magazine on May 22, 1941, Dr. Seuss Collection, MSS 230. Mandeville Special Collections Library, UC San Diego,
http://libraries.ucsd.edu/speccoll/dswenttowar/#ark:bb5461618q From: Dr. Seuss Collection, MSS 230
Relax, Sam, I assure you the express turns off right here!
published by PM Magazine on September 9, 1941, Dr. Seuss Collection, MSS 230. Mandeville Special Collections Library, UC San Diego
http://libraries.ucsd.edu/speccoll/dswenttowar/#ark:bb2697086r From: Dr. Seuss Collection, MSS 230
Listen, maestro... if you want to get real harmony, use the black keys as well as the white!
published by PM Magazine on June 30, 1942, Dr. Seuss Collection, MSS 230. Mandeville Special Collections Library, UC San Diego
http://libraries.ucsd.edu/speccoll/dswenttowar/#ark:bb1092978w From: Dr. Seuss Collection, MSS 230