He has also served as chairman of the board of directors of Marathon Oil, the International Iron and Steel Institute, and the US-Korea Business Council, as well as at U.S.
[2] He joined United States Steel Corporation in 1965 and held various positions in industrial engineering spending much of his early career in the field.
[5] Early in his career, Usher spent ten years teaching courses part-time at the University of Pittsburgh's Joseph M. Katz Graduate School of Business as well as undergraduate and graduate classes in industrial engineering at the university's Swanson School of Engineering.
[6] He became chairman of the board and chief executive officer effective in 1995, which provided him oversight of USX's oil and energy businesses.
[13] Usher retired from U.S. Steel, which had changed its name back from USX, as chief executive officer in September 2004 and as non-executive chairman of the board on February 1, 2006.
[17] Usher was the commencement speaker and was awarded an honorary Doctor of Humane Letters degree by Saint Vincent College.