 He also taught in locally sponsored programs in Italy, Japan, Mexico, the Netherlands, the Philippines, the United Kingdom, and Venezuela.Under the sponsorship of the American Bankers Association, Williams conducted conferences and seminars for top officers of the largest banks in the United States and taught in the Senior Bank Officers Seminar for presidents of small banks.Sessions of the Senior Bank Officers Seminar were held at Harvard Business School for many years and were attended by approximately 2,300 executives.