Goudie, Gilbert. “Notice of Unpublished Rentals of the Ancient Lordship of Shetland, and of the Earldom and Bishopric of Orkney”. Proceedings of the Society of Antiquaries of Scotland 19 (November 30, 1885): 213–246. Accessed November 22, 2024. https://journals.socantscot.org/index.php/psas/article/view/6150.