(1966) "The Hebrides", London, Heinemann* Quine, David (2000) "St Kilda", Grantown-on-Spey, Colin Baxter Island Guides ISBN 1-84107-008-4* Steel, Tom (1988) "The Life and Death of St. Kilda", London, Fontana ISBN 0-00-637340-2* Williamson, Kenneth; & Boyd, J. Morton.
(1966) "The Hebrides", London, Heinemann* Quine, David (2000) "St Kilda", Grantown-on-Spey, Colin Baxter Island Guides ISBN 1841070084* Steel, Tom (1988) "The Life and Death of St. Kilda", London, Fontana ISBN 0006373402* Williamson, Kenneth; & Boyd, J. Morton.