Bain, Joseph. “Note on an Original Document in the Handwriting of William Brydone (or Bryden), in All Probability the Town-Clerk of Selkirk, Who Is Said to Have Fallen at Flodden”. Proceedings of the Society of Antiquaries of Scotland, vol. 20, Nov. 1886, pp. 336-7, doi:10.9750/PSAS.020.336.337.