The following links point to information that might be of interest to IH tractor and truck collectors:

McCormick-International Harvester Company Collection at Wisconsin Historical Society Wisconsin Historical Society historical images collection ( Search tractors, trucks or similar)	http://www.wisconsinhistory.org/libraryarchives/ihc/ www.wisconsinhistory.org/whi
National office: International Harvester Collectors Club, Inc.	http://www.nationalihcollectors.com