This collection consists of contemporary copies of letters written by T. Blackwood from Michilimackinac to James and Andrew McGill & Co., to Ch. Chaboillez, and to T. and J. McGregor.

Three letters from Seaton relating to the Rebellion of 1837, including a letter to General Fitzroy Sommerset about the capture of St-Eustache.

Frobisher's papers comprise a letterbook of the North-West Co. containing copies of letters written by Frobisher from April 1787 to October 1788, two original letters to Simon McTavish, 1796, and one from him, 1787, business and legal documents, largely concerning the estate of James McGill, 1810-1834, and a diary, 1806-1810, mostly a record of where he dined.

Collection contains a manuscript note written by a doctor at Partridge Island, dated August 21, 1833, that a Mrs. Campbell is allowed to depart from quarantine; also includes a travel document for Mrs. Campbell and two other adults sailing from Belfast to St. John, NB.

These are various business papers of Simon McTavish and include partnership agreements with William and Duncan McGillivray, William Hallowell, Roderick McKenzie, Angus Shaw and James Hallowell, 1806 and drafts of agreement for seven years between McTavish, Frobisher and Company and John Fraser of London, Simon McGillivray and John Tullon, 1805.

The Coppenrath Collection of Voyageurs Contracts for the North West Company partners contains 52 contracts for the period from approximately 1800 to 1821. These document the terms of engagement for men going into the North West . Voyageur contracts are of particular interest for study of the fur trade, Canada's first major industry, because they document the conditions of employment for many of the journeymen ("engagés") involved in the trade, both those who worked on the Ottawa River and those who "wintered" in the North West. The contracts are dated from 1800 to 1821 with printed forms from before 1800 being used in some cases. A significant number of outfitters are included namely the firm of McTavish, McGillivrays & Co. with various partners including John Ogilvy and Thomas Thain, Pierre de Rocheblave and earlier partnership – McTavish, Frobisher & Co. As well, there are contracts with lesser known outfitters. These contracts provide not only the names of the "engagés" but usually their place of residence and the conditions and terms of their employment.

This collection consists of lines on various subjects, 1815-1821.

This collection consists of translations from Terence, begun in 1778, and correspondence on military, political and private matters, 1787-1821, mostly addressed to Thomas Coutts, banker.

This material documents the estate of Mrs. Charlotte Frobisher and includes a copy of her will and an inventory, 1820.

The collection was assembled by the Rare Book Department at McGill to group a number of anonymous poetry collections and verse miscellanies dating from roughly the long eighteenth century. These include: a volume written around 1700 containing Milton's Comus and other poems, largely elegiac; a group of 38 original poems from 1774; satires of Cambridge personalities by an undergraduate (1795-1800); a volume of poems bound in vellum written in various hands by George Colin Campbell, Miss Flaxman, Mrs. A. M. Keith, Bernard Bolton, George Tucker and others, with sketches (1817); and Lady Murray's poetry commonplace-book (approximately 1820) containing poems by celebrated authors and some original pieces.