The Regional Files are in many instances a rich, varied and detailed account of the workings of Grail centers and Teams throughout the U.S. The files may be as large as the still existing San Jose or Cornwall-on-Hudson Centers or as small as the Maryland file where only a survey report was made. The material contained is from the Grailville files on individual centers and the centers themselves as they closed or transferred material to Grailville. Included are reports, correspondence, program files, address lists, minutes, agendas, scrapbooks, dramas, scattered financial reports especially from regional bookstores as they closed, scattered newspaper clippings, news releases and miscellaneous material.

Of special interest are the well-documented examples of social projects initiated by the Grail in New York, San Jose and especially Lafayette where the Grail was involved in black voter registration in the early 1960s. Also of interest are the Chicago files which are really reports from Doddridge Farm, and also contains the telegram inviting the Grail to establish itself in the United States.

The material has been divided geographically and arranged alphabetically by state. Within each state the material has been subdivided and arranged alphabetically by city or center. Within these city files the material is divided into record type and then arranged chronologically or alphabetically.