Consists of a statement from the Keerper of the Common Gaol of Montreal presented to the Grand Jury of the Court of Oyer & Terminer for the District of Montreal, 1821. The statement declares that the prison under itscurrent configuration is inadequate for the increasing number of prisoners that have been lodged therein rendering it almost impossible to separate different classes of prisoners. The Keeper, Peter Holt, requests that the lower part of the prison ought to be restored to its original use and reunited to the Common Gaol to create more space for prisoners.

File includes a letter addressed to Mackenzie, Oldham & Co. from Parker, Gerrard, Ogilvy & Co., ordering three to four hundred quintals of biscuit to be delivered at the End of the Island.

File consists of documents and a letter concerning support for the union of Upper and Lower Canada. Included are: a draft of a letter from the Seigneuries of Terrebonne, Mille Isles, Argenteuil and the Township of Chatham, to the committee in Montreal regarding pre-union petition; a copy of the petition in favor of the union of the provinces, from the counties of Effingham, York, Chatham and Argenteuil (this possibly accompanied the above described letter); a letter from G(eorge) Moffatt to unknown recipient giving his opinion on the wording of the petition; a draft of a section of the petition; another draft of the petition, from the county of Effingham (probably incomplete); and a printed document titled, "A Bill for Re-uniting the Provinces of Upper and Lower Canada, and for the Government of the United Province. Ordered by the House of Commons."

File contains a letter addressed to John Mackenzie from William Wentzel. Wentzel gives news of business at Fort William, of traders both present and away, and of friends. He ends off by apologizing for not for not having visited Mr. and Mrs. Mackenzie at Terrebonne when he was in Montreal.

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

File contains six documents relating to the estate of Simon McTavish, for which Henry McKenzie was the executor