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.