Thomas McLauchlan (1815–1886) was a Scottish minister and theological author who served as Moderator of the General Assembly for the Free Church of Scotland 1876/77.
In the spring of 1849 he was called to St. Columba Gaelic Free Church, Edinburgh, where he laboured till the close of his career.
[3] He undertook the charge of a Gaelic class for the benefit of Highland students attending the Edinburgh University which he conducted for many years.
Among his best known works are "The Early Scottish Church," 1873; "Carsweirs Prayer Book," 1873; Celtic Gleanings," 1857: "The Dean of Lismore's Book," 1862; "The Gaelic Reference Bible;" which he edited along with Dr. Clark, Kilmallie; "The Review of Gaelic Literature" (1877), which appeared in the "History of the Highlands and Highland Clans," was also from his pen.
Dr. Maclauchlan had first to read the Dean's transcript — no ordinary task, when to a strange orthography, affording no clue to the original word, was added a careless handwriting of the beginning of the sixteenth century, faded ink, and decayed paper.
He was portrayed by Norman Macbeth[citation needed] He was married three times: His older brother Simon Fraser McLauchlan (1808-1881) was also a Free Church minister.