The fonds consists of his original presentation copy of Treaty 7.

The item consists of letter from Martin to John I. Chambers regarding the acquisition of a knife from Crowfoot, Chief of the Blackfoot (Siksika) in southern Alberta.

The fonds consists of photographs of Red Crow and Chief Moon.

The fonds consists of traveller's sample book of photographs of mountain scenes, the British Columbia interior, CPR points and railway bridges, tunnels, trains and workers (1889). Includes photographs of native people and a Blood sun dance (1887); of May, his wife, family and ranch (1885-1907); of Boorne, his Manitoba homestead, and the Calgary studio; and experimental photographs (1883-1884). Includes his article, "With the Savages in the Far West", published in the Canadian Photographic Journal, 1893. Also includes a diary of Boorne's cousin Ernest May (1897).

The fonds consists of his scrapbook with excerpts from various publications dealing with First Nations of Western Canada interspersed with newsclippings from the Calgary newspaper as well as postcards showing various native views. Includes a substantial number of Harry Pollard photographs showing Sun Dance and other Blackfoot views.

The fonds consists of correspondence, reports, appointments, newsclippings, etc., pertaining to the Dewdney Trail and his early career in British Columbia; correspondence, speeches, diaries (1879, 1882-1883, 1885-1886, 1888), reports and newsclippings related to his duties as Lieutenant-Governor and Indian Commissioner of the North-West Territories; appointments and correspondence as Minister of the Interior; some correspondence as Lieutenant-Governor of British Columbia; and a series of personal correspondence of Blanche Dewdney (1914-1926).
Records related to the following subjects are also in this fonds. See inventory for details: Magnus Begg, Big Bear (Cree), C.O. Card, Laurence Clarke, Columbia and Kootenay Railway and Transportation Co., Conservative Party, Crowfoot (Blackfoot), William Crozier, Nicholas Davin Flood, D.W. Davis, George M. Dawson, Amor de Cosmos, J.S. Dennis, Cecil Denny, Gabriel Dumont, Amedee Emmanuel Forget, I.S. Freeze, William McGirr, Bishop Vital Grandin, Col. A.G. Irvine, Dr. Augustus Jukes, Father Albert Lacombe, Wilfrid Laurier, Jean L'Heureux, Marquess of Lorne, James A. Lougheed, Hugh John Macdonald, John A. Macdonald, D.L. Macpherson, Frederick D. Middleton, Military Colonization Ranche, Walter Moberly, Mormons, Frank Oliver, William Pearce, William Dell Perly, Piapot (Cree), Poundmaker (Cree), Red Pheasant (Cree), Hayter Reed, Louis Riel, North-West Mounted Police (NWMP), Joseph Royal, Charles B. Rouleau, William B. Scarth, Alfred Richard C. Selwyn, Sitting Bull (Sioux), Sir John Thompson, Judge Jeremiah Travis, Tsimshian, William C. Van Horne, Laurence Vankoughnet, Col. James Walker, Walrond Ranch and Fred White.

The fonds consists of a calendar of pictographs, recording significant annual events for the North Peigan Nation of the Blackfoot Confederacy, from 1764 to 1910. The winter count was compiled ca. 1910 by Bull Plume (and annotated by Anglican missionary W.R. Haynes), and records battles and deaths, the arrival of diseases like smallpox and measles, the disappearance of the buffalo, the signing of Treaty 7, and the death of Queen Victoria. The volume also lists the leaders of the Blackfoot, and includes drawings of material culture items. The fonds also consists of one page of Blackfoot syllabics with English translation; an article about Bull Plume written by Moses B. Cotsworth (1939); photographs of the Arthur family, Fort Macleod, Alberta and region, and Peigan Indian Agency at Brocket. Includes the school and military records of Clive Arthur.

The fonds consists of miscellaneous family records including correspondence (1900-1930), photographs, baptism certificate (1878), St. Albert assessment notice (1931), postcards, newsclippings, and Catholic religious material. Includes a handwritten recipe for dandelion wine, hand-cut paper stencils for beadwork, and a prayer book in Cree syllabics published by the Oblates in Edmonton (1929).

The fonds consists of a recounting of his 1885 experiences in Steele's Scouts (1895); Glenmore SD cashbook (1889-1909) with Katherine's diary written in the back (1911-1913); Glenmore SD tax record book (1897-1909) with William's cattle records and accounts in the back; LID No. 221 minutes (1907-1920); appointments (1914, 1936); and photographs of Calgary area pioneers (1887-1903).

The fonds consists of photographs of the Moodie family, Cree, Baker Lake and Chesterfield Inlet, and RCMP barracks at Regina.