This series contains central correspondence files, ca. 1909-1979 (a few files date from as early as 1899 and a few continue until 1986). The files contain correspondence inward to Provincial Archivists and archives staff from researchers, historical societies, dealers, etc., and their replies, and cover the range of subjects dealt with by the archives, including acquisitions, replying to reference questions and requests for copies, and publishing the British Columbia Historical Quarterly.
The files in Boxes 1-172 are arranged alphabetically by correspondent or by subject. Box 173 contains correspondence registers, Boxes 174-177 J.S. Matthews correspondence, Boxes 178-18, Centennial '71 Committee records, Box 181, Barkerville Restoration Advisory Committee records and Box 182, correspondence files transferred from the Legislative Library in 2007, arranged by correspondent or subject.