Annual Awards Clayton Chamber of Commerce By Colleen Doherty The Clayton Chamber of Commerce proudly presented the recipients of its Annual Awards at The Ritz-Carlton. Michael Neidorff of Centene Corporation was named the 2011 Business Person of the Year, Gladys Manion Real Estate was honored with the 2011 Excellence in Retail/Service Award, and the 2011 Cornerstone Award was received by The Scholarship Foundation of St. Louis. KTRS’s McGraw Milhaven was master of ceremonies, and entertainment was provided by Peter Schankman.