For some time, archivists have been discussing the need for a standard structure for the recording and exchange of information about the creators of archival materials. Following up on these discussions, a group of archivists met in Toronto, Canada, in March 2001 to create a high-level model for such information and to draft a strategy for implementing that model and testing it. The group has termed the model "Encoded Archival Context - Corporate Bodies, Persons, and Families" (EAC-CPF) to emphasize its important role in archival description and its relationship with the Encoded Archival Description standard. During the development stages, the EACWG enjoyed generous support from the Gladys Krieble Delmas Foundation, the IBC (Instituto per I beni artistici culturali e naturali) of the Regione Emilia-Romagna, and the Archivio di Stato di Bologna, OCLC Research, and the National Library of Australia. A three-day meeting in Bologna and companion conference “Standards and exchange formats for interoperability among archival information systems” sponsored by the IBC and held at the Oratorio San Filippo Neri, on 8-9 May 2008 laid the foundation for the current schema. The EACWG is grateful for the support and gracious hospitality that we received.