Documenting more than a century of formal proceedings, the minutes of the meetings of the Board of Trustees comprise the bulk of this record group. Although minutes of meetings held before the Board's establishment are included here, the first meeting of the Board of Trustees of the Pennsylvania Museum and School of Industrial recorded is December 15, 1875. The most recent minutes currently in the Archives date from October 1998. Many of the minutes include meeting agendas and reports issued by various Museum departments and offices. Minutes of the annual meetings of the corporation are also included. Frequency of minutes varies as Trustees met monthly, annually, and occasionally unscheduled special meetings were called. Minutes up to October 1973 have been bound in 17 volumes. Minutes from several meetings held in 1989, 1990 and 1993 are confidential, and their folders have been marked accordingly.