File includes a kept copy of a letter to John Mckenzie. The letter contains numerous politcal observations. It discusses John's patents and a matter to do with the Attorney General, Quebec society, and the regretted departure of Lord Dalhousie.
File includes a kept copy of a letter to George Simpson. Also an extract from a letter to J. Moffatt from R. Mackenzie dated Dec. 18, 1829 included in plastic sleeve.