The collection contains correspondence, diaries, unpublished manuscripts, and copies of published writing. The twelve folders of correspondence, although primarily incoming, include exchanges between Brooker and other artists such as LeMoine Fitzgerald, William Arthur Deacon, and Pelham Edgar. His diaries consist mostly of fragmented excerpts of short, intermittent periods in his life. The heart of the collection is a core of his literary works, most of which have never been published. Most consist of original and second drafts showing evolutionary changes, corrections, and notations. There are thirty-five plays, portions of novels, seventy-five short-stories, essays (most of which are unpublished), and a considerable amount of poetry. Most of the poetry has been published by Professor Birk Sproxton in a book by Turnstone Press titled Sounds Assembling (1980). Several of the poems are in multiple drafts, though only a few are dated. Brooker's published writings on advertising remain with the family. Art work is not included in the collection. The balance of the manuscript collection consists of newspaper clippings, photographs, an account book, and other miscellaneous items. The collection also contains Brooker's private research library consisting of approximately 300 volumes, many of which are carefully annotated.

The fonds consists of material pertaining to Bell's activities in the Wolseley Expedition. It documents the Expedition's journey to the Red River Settlement, its return to Thunder Bay, and its work in exploring and laying telegraph lines in the west from 1875 to 1876. In addition to the 1.49 m of textual records the fonds includes 27 photographs, 37 lantern slides and 3 maps (including one plan). The articles and lantern slides relate to a presentation Bell gave in later years on the history of these events.

The fonds consists of unpublished memoirs of Evelyn Gilmore's experiences in Northern Manitoba.

The fonds is an album of the Chamber of Commerce Tour to Churchill, Manitoba. Photographs include Flin Flon, Gilliam, and Churchill and other interesting insights into early mining in Manitoba. The scrapbook includes some articles that are described in the finding aid.

The fonds consists of the four-part handwritten and typescript versions, in photocopy format, of the autobiography of Else Freytag-Loringhoven.

The fonds consists of negatives depicting turn-of-the-twentieth-century farms in Manitoba.

The 8 images in cartes de visite format are as follows: Dominion Land Titles office (photographer unknown,1872-73); three First Nations individuals at an Aboriginal gravesite (Simon Duffin, 1873-1875?); early homestead building, family, and Red River Cart drawn by ox (Ryder Larsen, mid-1870s?); studio image of man posing as a hunter, Winnipeg (James Penrose, 1873?); Louis Riel and his councilors, (Ryder Larsen, 1869?); Red River settlement, showing the corner of Portage and Main (James Penrose, June 1872); land survey party, around the Red River Settlement (photographer and date unknown); two carioles drawn by dogs, possibly at the Red River settlement (photographer and date unknown).

This collection consists of:
Two decorative letter “M’s”
“Varsity Arts Freshman Reception” card
Invitations addressed to Miss Flora Armstrong
Two copies of “The Manitoban” – January 14, 1926 and November 5, 1925

The fonds consists of 28 newsclippings from the Winnipeg Tribune and Manitoba Free Press detailing C. Winston McQuillin's theatre career.

The fonds consists of a photograph of a Rummely threshing machine owned by four families in the Neepawa area during the 1930s. The fonds also contains a clipping featuring a poem written by Frank Dudenhoffer in 1948 that was printed for the Centennial of Neepawa in 1983.