Lockhart, W. 1887. Notice of a Deed (circa A.D. 1226) Settling a Controversy between the Rector of St Cuthbert’s, Hales (Colinton), and the Church of St Cuthbert’s, Edinburgh, in regard to the Teinds ’De Craggis et Gorgin.’. Proceedings of the Society of Antiquaries of Scotland. 21, (Nov. 1887), 275–279. DOI:https://doi.org/10.9750/PSAS.021.275.279.