Ritchie, James. “Relics of the Body-Snatchers: Supplementary Notes on Mortsafe Tackle, Mortsafes, Watch-Houses, and Public Vaults, Mostly in Aberdeenshire”. Proceedings of the Society of Antiquaries of Scotland 55 (November 30, 1921): 221–229. Accessed November 22, 2024. https://journals.socantscot.org/index.php/psas/article/view/7503.