Mitchell, Arthur. “A List of Travels, Tours, Journeys, Voyages, Cruises, Excursions, Wanderings, Rambles, Visits, Etc., Relating to Scotland”. Proceedings of the Society of Antiquaries of Scotland 35 (November 30, 1901): 431-638. Accessed April 19, 2021. http://journals.socantscot.org/index.php/psas/article/view/6821.