File consists of 6 letters written by Roderick Mackenzie, including four addressed to M.P. Jacob Oldham at Quebec and two addressed to John Mackenzie at Terrebonne.

Consists of letter from Roderick Mackenzie to John Mackenzie, probably his son Lieut. John Mackenzie, 1794−1871.

File relates to Sir Alexander Mackenzie and includes a letter from Sir Alexander Mackenzie to his first cousin Roderick Mackenzie as well as numerous biographical and scholarly material and memorabilia related to Sir Alexander and his legacy.

Consists of court proceedings of William McGillivray et al. vs. Roderick MacKenzie: "Summary of the Affairs of the late Simon McTavish Esquire of the City of Montreal.

Contains a letter from Roderick Mackenzie to John Mackenzie.

Consists of letter from Roderick Mackenzie to Henry McKenzie.

Includes a notarized agreement (1808) between Simon Fraser and Roderick Mackenzie for building a house at Terrebonne and a second notarized agreement regarding an expedition (1809).

Consists of marriage settlement between Roderick Mackenzie and Rachel Chaboillez and other documents pertaining to the life of Roderick Mackenzie, including notes, correspondence, transcription of document, photocopies of original material, photographs and manuscript documents relating to genealogy and to the Seignery of Terrebonne, etc.

File includes manuscript/memorandum written by Roderick Mackenzie. The document gives a brief background on the first use of surnames in France and the UK, and describes the tomb of an early McKenzie (Murdoch Rearack McKenzie) in Beauly, Scotland. Also describes other cemeteries in Scotland and their famous residents.

File includes five documents effected after the death of Roderick Mackenzie, including: a draft of Mackenzie's obituary; an invoice for the purchase of mourning goods; an affidavit testifying to the authenticity of Mackenzie's "testament olographe (holographic testament)" and requesting, on behalf of his widow, that the testament be executed; four documents detailing the division of Mackenzie's estate; and one-year lease for 12 Beaver Hall Terrace made out to Mackenzie's widow.