Includes three letters addressed to Lieut-Col. Roderick Mackenzie and one letter to addressed to Joseph Masson. The three letters to Roderick Mackenzie are from J.M. Mondelet. The first letter includes Mondelet's regrets at not having been able to give the carrier the Mackenzie's estimated amount. The second letter mentions the Deputy Pay Master of the militia had not yet arrived but a letter received from Mr. Ryland contained the warrant signed by Sir George Prevost and had been shown by Mondelet to McKenzie's sergeant. The third letter mentions Mondelet has paid the amount at the Office of the North West Co. and will pay the officers as soon as the money is received. The letter to Joseph Masson is also from J. M. Mondelet. The letter mentions E. Prevost's creditors, several of whom did not attend a meeting, which was consequently adjourned to the following day.

File includes two letters addressed to Henry McKenzie from D. Ogden. The first letter refers to a letter on the subject of the Frobisher Estate and says that McKenzie may forward it to Ben Frobisher. In the second letter, Ogden gives his opinion on the matter of McKenzie's purchase of McKay's house in Terrebonne.

File includes accounts and documents relating to the ship Rachel. Included are four accounts showing wages paid to four different sailors, including a first mate and master, on board the Rachel, 1810-1811; a 6-page account showing purchases made for the Rachel between January 1811 and September 17, 1812; a document listing the inventory on the Rachel with assigned values (items belonging to the ship, not cargo, 1810-1811) ; a document titled, "A List of Seamen's Wages on Board Brig Rachel," 1811-1813; and an Account of the Rachel for goods purchased from John Dunscomb & Co., 1812-1813.

File includes a memorandum on the Seigneury of Terrebonne, with a letter and four letter transcripts addressed to Roderick Mackenzie. The memorandum reads: "Memorandum respecting the Seigniory of Terrebonne informing proprietors to apply to Mr. Plante to determine the amount of taxes owed on the third concession of the Seigniory, noting that the amount due should be increased from what was previously paid by Mr. Jordan." Also included is a letter concerning the sale of the seigneury of Terrebonne to Mackenzie and later annulment and 4 transcripts of letters from Reid to Mackenzie regarding the seigneury of Terrebonne dating from 12 August 12 1816 to 19 February 19 1819.

File includes a letter from Isaac Todd to Mackenzie, Oldham & Co. Todd relays the request from Mr. Morrogh to send a bill for a shipment received in June of 500 barrels.

Unsigned manuscript letter. Docket title in R. Mackenzie's hand on verso reads, "The Governor in Chief's reply to the address presented by the inhabitants of Terrebonne at the Seignorial House."

Consists of letter from the Earl of Dalhousie to Roderick Mackenzie.

File consists of document recording judgments rendered presumably against tenants of the Terrebonne Seignery instituted by Roderick Mackenzie.

Consists of letter from Roderick Mackenzie to Lt. Col. Vassal de Monviel.

Consists of power of attorney signed by Louisa MacKenzie for Roderick Mackenzie to act on her behalf. Signed at Sault-Ste.-Marie and dated