AIA Consolidates Chicago Office The American Insurance Association’s Midwest operations have been consolidated in one location at 120 South LaSalle Street, Chicago, Ill. 60603. Effective September 27, association divisional units housed at the new offices include: Engineering and Safety, Boyd A. Hartley, assistant manager; Fraud and Arson, Robert E. May, chief special agent; Law, William S. Gibson, associate counsel; Chicago Arbitration Committee, Chicago Index Bureau and Loss Information Service.