Welcome to the Barbour Library The Clifford E. Barbour Library has a collection of more than 400,000 cataloged items, mainly in Protestant theology and Biblical studies. Specialized holdings include works in the Presbyterian and Reformed tradition in the areas of theology, church history, missions, ecumenics, and hymnology. The library also houses the Seminary archives.   CALVIN - The Library Catalog Text-only access to the catalog (login: library) Research Databases About the databases. | Remote Access information.