The archive of Minute Books contain the official records of the Council meetings and the General Meetings of the Siam Society from 1904 to 2004 and beyond. It reflects the Society's system, process and outcome of work, its obstacles and challenges, the personalities and organizations contributing to its success and the scope of its work in a century of great international changes and development. It testifies to the continuous transactions and cooperation of an international and intellectual nature, among the many generations of people elected to carry out the work of the Siam Society over the long and eventful century.