This sub-series consists of circular letters to be read at an assembled meetings. The bulk of the letters dates between 1908-1911. Often they consist of direction from the CCUB, such as livestock to sell, when to clear the fields, or when to come to a meeting. The letters relate to the CCUB operation in British Columbia and Saskatchewan (Station Vering). The letters also deal with the logistics of the move to British Columbia. Most of the letters were issued on the Christian Community of Universal Brotherhood (CCUB) letterhead, but there are some without any letterhead and some on the Office of the Peter V. Verigin letterhead. Most of the letters are original mimeographs and only a few photocopies. All records are in Russian.

This sub-series consists of the correspondence sent to P. V. Verigin by various members of the CCUB, including: M. Streliaev, I. Shukin, V. Ribin, P. Biriukov, V. Bonch-Bruevich, I. Tregubov, I. Gorbunov-Posadov, G. Rezendort. Some letters refer to the planned arrival of Peter P. Verigin in Canada, others to matters of the Doukhobor leadership. Also, includes correspondence from War Resisters International. All correspondence in this sub-series is mimeographed; some records are originals and some are photocopies. All records are in Russian.

This sub-series consists of the reports, writings, speeches, talks, addresses, mandate, manual, texts of songs created on behalf of the CCUB by its executive members. These documents relate to the history and ideology of the Doukhobor communities and its leaders and were written for the benefit of the communities. This sub-series contains both original mimeographed and manuscript documents as well as photocopies of documents. Most documents are in Russian and a few in English.

This sub-series consists of lists, timelines, statements, petitions, reports, correspondence, memos, and newspaper clippings that document various aspects of Doukhobor history in Canada. The matters contained in this sub-series include: arrival of Doukhobors in Canada, relationship between the Doukhobor community, Verigins and the Sons of Freedom, as well as relationship of the Doukhobors with the Soviets and with the Canadian government. This sub-series includes printed, mimeographed and handwritten documents in Russian and/or English. Some are original documents and some are photocopies. In some cases, Russian handwritten document is supplied with a Russian and English version mimeograph.

This sub-series consists of 24 photographs of Stephan Sorokin. Many of the photographs are portraits or close-up of Sorokin at different ages, however, very few photographs are actually dated. Some of the photographs depict Sorokin with individuals or groups of people and some photographs were taken at events.