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.

File contains to letters from Henry McKenzie to Jacob Oldham concerning the petition of pro-Union supporters being prepared to be taken by James Stuart to present to the British Parliament. The December 4th letter contains an unsigned draft of a petition (not in Mackenzie's hand)