Ewen MacLachlan was librarian to the University and King's College, Aberdeen from 1800 - 1818, and head of the Grammar School from 1819 until his death in 1822. A distinguished Gaelic scholar and poet, he was appointed by the Highland Society of Scotland to assist Rev. John MacLeod, DD (1757 - 1841) in the compilation of the Gaelic Dictionary, published in 1828. Publications include Attempts in Verse (Aberdeen, 1807); Metrical Effusions (Aberdeen, 1816); and his Gaelic translation of parts of Homer's Iliad, which appeared in Patrick MacFarlane's Choice Collection of Gaelic Poems (Edinburgh: Stewart, 1813)
For further details see Dictionary of National Biography ; P.J. Anderson, Ewen MacLachlan: Librarian to the University and King's College, Aberdeen, 1800 - 1818, Aberdeen University Library Bulletin, 18 (Aberdeen: Aberdeen University Press, 1918.
From the guide to the Papers of and relating to Ewan MacLachlan, c 1809 - c 1841, (University of Aberdeen)