The series consists of business and legal documents, correspondence, addresses and memoranda, and newspapers. Many of the legal and business documents are concerned with insolvency cases in Montreal, 1841-1875. While most of the material relates to Brown's political activities and business in Canada, some letters relate to the United States, particularly Florida, and its expulsion of Native peoples. The series includes an index of the Vindicator, 4 Nov. 1836 to 7 Nov. 1837, as well as a journal Brown kept aboard the Mary Frances during a sea voyage in 1838.

Series Legal, Business, and Financial Documents contains receipts, invoices, legal summons and results, bank statements, insurance accounts, and other such documents as well as 7 architectural/technical drawings and 1 photograph.

Series consists of ephemera relating to Bewick and his life, including articles and clippings, short biographical pieces, and postcards and products featuring Bewick's work. The ephemera includes commercially-produced items and packaging featuring Bewick engravings, such as wrapping paper and wine labels, and ephemera relating to his place of birth or with his name (for example, matchbooks). One file consists of postcards with watercolours, engravings, and other English scenes. The series also contains a DVD of a film on Thomas Bewick's life written and narrated by Iain Bain. Two files contain clippings and photocopies of articles relating to Bewick; one is a 19th-century clipping originally found by Geraldine Cole between two pages of one of Bewick's volumes previously in her possession. The last file (20) contains 4 original letters from Thomas Bewick to various correspondents, dating between 1813 to 1825. This file also includes a letter on amourning stationery from Isabella Bewick (1881), another 1881 letter from Robert Robinson regarding Bewick cuts, and an 1818 receipt of sale for Esop's Fables.

The series contains letters written by Robert Abraham to several recipients, including his father and his brother.

The series contains letters written both to and from Thomas Abraham.

The series consists of letters from family and friends of Robert Abraham.

The series contains newspaper clippings and offprints written by, or on the subject of, Robert Abraham.

Series consists of pantins, paper puppets which can be cut out from printed paper sheets and assembled. Includes nine sheets of pantins. Files are described individually.

The minutes series comprises eight bound volumes, two publications and one envelope of loose duplicate minutes. The minutes document proceedings from the annual, general, monthly, special, ordinary and extraordinary meetings held by the Society. It consists of the minutes from the Natural History Society (1827-1923), the Natural History Society Council (1827-1922), and the Natural History Society Committees (1906-1908).

The handwritten and typed minutes document the Society’s activities, including lists of members, newspaper articles, donations to the Society, elections, advertisements for sponsored lectures, and reports from committees. Handwritten copies of letters from Dr. Meade, Mr. C.U. Shepard, Major Delafield (File 5.2) and Robert Burn (File 9.1) to the Society as well as letters sent on behalf of the Society (Smithsonian Institute, File 5.1) are included with the minutes.