Buchanan, J. 1863. Notes in connexion with twelve Autograph Letters by Major-General James Wolfe, who fell at the Capture of Quebec on 13th September 1759, addressed to Captain, afterwards Lieut.-Colonel William Rickson, Quarter-master General of North Britain. Proceedings of the Society of Antiquaries of Scotland. 4, (Nov. 1863), 455–459. DOI:https://doi.org/10.9750/PSAS.004.455.459.