Allan Bradley Company
American Republic Insurance Company
Arthur Anderson and Company
Bliss and Laughlin Industries
Blue Cross Association
Borg-Warner Corporation
Bucher Advertising, Inc.
Burnidge and Cassell
Central National Bank of Cleveland
Chicago and Northwestern Railway
Clifford Law Offices, Chicago
Commonwealth Edison Company
Ernst & Whinney
First National Bank of Chicago
Gardner, Jones & Cowell, Inc.
George Pick &Company
Gould, Inc.
Harcourt, Brace & Jovanich
Harris Trust and Savings Bank
Home Federal Savings & Loan Association of Chicago
Hopkins, Sutter, Owen, Mulroy &Davis
Illinois Bell Telephone Company
Illinois Tool Works, Inc.
Ingalls Memorial Hospital
International Minerals & Chemical Corporation
Inland Steel Company
Isham Lincoln & Beale
Lake Shore National Bank
Lord, Bissell & Brook
The Maytag Company
Metal Coating Corporation
Minnesota Mining & Manufacturing company
National Boulevard Bank of Chicago
Northern Trust Bank
Peat, Marwick, Mitchell & Company
Post, Keyes, Gardner, Inc.
Quaker Oats Company
Richmond, Manhoff, Marsh, Inc.
Rollins, Burdick & Hunter Company
Ruben, Kaplan & Lansky
John Rudin & Company
Seyfarth, Shaw, Fairweather & Geraldson
Standard Club
Tempel Steel Company
Thrall Car Manufacturing Company
3M
United Airlines
U.S. Savings & Loan League
Westinghouse Measurement Center
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