The collection consists of 10 ink manuscript maps and plans on paper, some hand-coloured, depicting the earliest settlements and fortifications at Montreal and Quebec City. The earliest dated document is a plan of the fort of Quebec and is dated 1635. The earliest document in the collection depicting Montreal is believed to date back to 1642. The maps and plans were prepared by Jean Bourdon, seigneur and surveyor for the French colony. Included in the collection is a plan of the earliest Fort Richelieu of which nothing had previously been known. There are also detail drawings of riverside fortifications, probably near Montreal.

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

A collection of documents from the life of Simon McTavish including a letter to his creditors and a series of legal opinions on the estate of Simon and William McGillivray. Documents' informational value is largely financial in nature.

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.

Fonds consists of six autograph signed letters written at Montreal by Ann Adams, dated between 24 March 1834 to 26 December 1937, to her son Edward H. in Providence, Rhode Island, and Philadelphia. Letters contain local news (churches and organs built, the railroad to St. Johns, fires, printing and publishing, cholera, etc.), observations on the worsening tensions between Papineau and the "Canadiens" and the "Loyalists," and accounts of preaching by an Indigenous convert to Christianity.

Collection consists of one bound manuscript notebook softbound in a piece of brown leather. The notebook dates chiefly from 1841 and was produced in St. Armand by Philip Luke. The notebook contains a title page that has been lettered, illustrated, and coloured by hand: A Latin Translation / by Philip Luke. St. Armand. 1841. Commenced April 4th. The text within this first portion of the notebook is Aesop's Fables in English and Latin on facing pages. The first part of the manuscript ends with "13. Horse and Ass" (Latin is incomplete) and "32. Widow and Servants" (Latin text missing). The following leaf contains two medical recipes: "A cure for a felon or whitlow," refering to an abscess or infection of the fingertip and consisting of a paste made from egg yolk, honey, turpentine spirits, camphor, and flour, and "A reciet for the inflammatory rheumatism," involving a wine-based tonic containing three types of bark, horseradish, brandy, and tar water. Following another blank leaf, a partial letter is found dated 1839. Philip Luke's text begins again in the latter part of the manuscript with a second coloured title page: "Dialogues and Declamations." There is also one loose note laid in dated 1809, a receipt for 100$.

Collection contains a manuscript letter from Henry Lyman to his wife, Mary, in Granby; dated July 25, 1849, when the druggist shop Wm. Lyman & Co. was located at 194 and 196 St. Paul St. in Montreal, the letter deals principally with the cholera epidemic in the city.

This material comprises a group of official documents, and correspondence among various partners. The official documents include four articles of agreement for partnership between various Montréal companies, largely with McTavish, Frobisher and Co., 1790-1802, and a memorandum on the effect of exchange differences on the partners' shares (approximately 1826). The partners' correspondence, approximately 1792-1808, contains letters from Simon McTavish, Isaac Todd, and Alexander Mackenzie concerning provisions, business agreements and loans. A letter from William McGillivray to Mr Justice Reid discusses family matters. One financial ledger for the North West Company contains business accounts and records transactions. The bulk of entries are dated from January 1810 to November 1825, with some entries dated 1861.

Collection consists of 38 letters written primarily by John Wood Senior to family members in England. Many of these were written to a sister or sister-in-law and a few are addressed to his brother, Will Wood, a watchmaker and jeweller in London, including two in which Wood includes a list of trade supplies to order. Four letters are from John Wood's son, Peter Wentworth Wood. One letter is by John's wife, Anna. Contents include topics such as the country's economy, Canadian-British politics, the Woods' watchmaking and jewellery business, crops, slavery, and the American Civil War, as well as local Montreal news on subjects such as fires, the Victoria Bridge, a cholera outbreak, the 1856 Railroad Celebration, and a visit by the Prince of Wales. Letters also include family news, particularly of John Wood's children Peter, John, and Charles, seafaring disasters, gold mines, improvements in shipping in the St. Lawrence seaway and the Atlantic Ocean, the expansion of railroads, and the Atlantic Telegraph. Letters date between 25 November 1839 and 13 December 1867. One is a crossed letter.