can be found at the Cadbury Research Library, University of Birmingham. References Müller-Kessler, Christa (2004), Dunlop Gibson, née Smith (1843–1920), in Oxford Dictionary of the National Biography, vol. 22. Oxford: Oxford Press, pp. 89–90. https://doi.org/10.1093/ref:odnb/55585. Müller-Kessler, Christa (2004), Lewis, Agnes Smith (1843–1926), in Oxford Dictionary of the National Biography, vol. 33. Oxford: Oxford Press, pp. 579–580. https://doi.org/10.1093/ref:odnb/34510. Bibliography Whigham Price, Alan (1964), The Ladies of Castlebrae. The Life of Dr. Agnes Smith Lewis and Dr. Margaret Dunlop Gibson (Annual Lecture to the Presbyterian Historical Society, October 1964; University of Durham. Durham. Whigham Price, Alan (1985), The Ladies of Castlebrae. London. United Reformed Church (2004), A Gift Box . Cornick, D. and C. Binfield (editors) (2006) From Cambridge To Sinai United Reformed Church. Jefferson, Rebecca J. W. (2009) "Sisters of Semitics: A Fresh Appreciation of the Scholarship of Agnes Smith Lewis and Margaret Dunlop Gibson" in Medieval Feminist Forum 45/1, pp. 23–49 Soskice, Janet (2009), Sisters of Sinai: How Two Lady Adventurers Found the Hidden Gospels. London. Brock, Sebastian P. (2014), Agnes Lewis (1843–1926) and Margaret Gibson (1843–1920), in Predrag Bukovec (ed.), Christlicher Orient im Protrait – Wissenschaftsgeschichte des Christlichen Orients. Religionen im Vorderen Orient (RVO) 2. Hamburg. pp. 267–280. Citations External links Agnes Smith Lewis; Oxford Dictionary of National Biography Margaret Dunlop Gibson; Oxford Dictionary of National Biography Mrs. Lewis and Mrs. Gibson Digitised lantern slides of the sisters' travels from Westminster College, on Cambridge Digital Library National Archives Agnes Smith Lewis; Who is Who Agnes Smith Lewis Sinai Palimpsest Project Linguists English Presbyterians 19th-century British women writers British women travel writers People associated with the University of Cambridge English twins British travel writers 19th-century Scottish writers 19th-century Scottish women writers