Anderson, J. 1889. Notice of the Quigrich or Crosier, and other Relics of St Fillan, in the Possession of their Hereditary Keepers, or Dewars, in Glendochart, in 1549-50. Proceedings of the Society of Antiquaries of Scotland. 23, (Nov. 1889), 110–118. DOI:https://doi.org/10.9750/PSAS.023.110.118.