It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
This database covers virtually all libraries and archives in the United States & Canada. Like Orbis, it only searches brief descriptions of archival holdings. Select "Format" = "Archival Material" to limit your search to archival sources.
This database is like the Yale Finding Aid database but covers several thousand archival repositories across the United States & Canada. It searches through the detailed descriptions of larger archival collections.