The materials in this series represent the Rockefeller family's involvement over the course of more than half a century with mainstream charitable and philanthropic organizations. With certain important exceptions, these papers focus on maintenance organizations, i.e., groups handling the chronic problems of the disabled, alcoholics, juvenile delinquents, orphans, the elderly, and the sick. For this reason, much of the correspondence and other material contained here is of a routine nature and constitutes what was once called the "citizenship" obligations of the Rockefeller family.