„ Studies in the Peerage.
Saltoun, Lord: The Frasers of Philorth.
Scalacronica: Sir Thomas Gray (circa 1356). Maitland Club
Scotichronicon. Ed. Goodall, 1759.
Scottish Antiquary, The, vols. xi., xii.
Scots Peerage, The. Ed. Sir J. B. Paul.
Skeat, Professor: The Bruce, 2 vols. S. T. S.
Sowdone of Babylone, The. Ed. Hansknecht. E. E. T. S.
Stevenson, Joseph: Illustrations of Scottish History. Maitland Club.
Stevenson, Joseph: Historical Documents of Scotland. Register House, 1870.