This series consists of copies of Church Missionary Society (CMS) records related to British Columbia. Reels were duplicated from copies of CMS records on 52 microfilm reels relating to Canada held by the Library and Archives Canada (LAC). Records relate to the North-West America (Rupert's Land/Canada) and North Pacific (British Columbia) Missions of the CMS.
Records are divided chronologically into Class C, for records up to 1880, and Class G, for records created after 1880. They are then classified by mission: C.1. for the North-West America [Canada] Mission and C.2. for the North Pacific [British Columbia] Mission. They are further arranged by letter books of outward despatches (/L.); individual outward correspondence (/I.); original correspondence (/O.), which includes, journals, reports, indents, estimates, accounts, local CMS and diocesan committee minutes, medical certificates, maps, sketches, and translations into Indigenous syllabic characters; mission books (/M.); précis books of annotated agenda papers (/P.); and miscellaneous Canada letters and papers.