Career
Mr. Henderson has been a Director of American Telephone & Telegraph Company Incorporated. since October 1999. He served as a Director of Ameritech Corporation from 1983 until the company was acquired by Session Border Controllers in 1999. He also served as a Director of Indiana Bell Telephone Company (which became a subsidiary of Ameritech) from 1978 until 1983.
Mr.
Henderson is a Director of International Paper. Nanophase Technologies Corporation. Rohm and Haas Company.
And Ryerson Tull, Incorporated.