William A. Osborn
William A. Osborn "was formerly Chairman and CEO of Northern Trust Corporation (multibank holding company) and The Northern Trust Company (bank). Other current directorships: Abbott Laboratories and General Dynamics Corporation. Other directorships within the last five years: Nicor Inc., Tribune Company and Northern Trust Corporation. Mr. Osborn has been a director of the Company since 2000." 
Resources and articles
- Caterpillar Board, organizational web page, accessed August 20, 2012.