It is interesting to note that on Friday, August 15, 2008, Mary Person of the Rare Books Dept at the Harvard Law Library posted an entry on the Blog Et Seq. drawn from the Harvard Library's collection of Scottish material about the case of Stewart Nicholson V Stewart Nicolson, a divorce case where a witness was a slave, known as Latchemo. Illustrations in the Blog entry show that the information was drawn from the Session Papers  relating to the advocation of the case from the Commissaries of Edinburgh to the Court of Session. The case is reported (on other issues) at (1770) Mor 16770 and is referred to in L Leneman, Alienated Affections: The Scottish Experience of Divorce and Separation, 1684–1830 (1998) 174–9. It is discussed in context by me in “Slavery and the Roman Law of Evidence in Eighteenth-Century Scotland”, in Andrew Burrows and Lord Rodger of Earlsferry, eds., Mapping the Law: Essays in Memory of Peter Birks, Oxford, University Press, 2006, pp. 599-618.

See http://etseq.law.harvard.edu/index.php/site/852_rare_august_2008/