“ Even in the beautiful “Braes of Yarrow” one of the verses is borrowed direct from an old border ballad. The traditional evidence in favour of Bruce’s authorship of the “Ode to the Cuckoo” can hardly be set aside, but Dr Robertson of Dalmeny, who was Logan’s literary executor, stated that he had gone over the MSS. procured at Kinnesswood with Logan.
Logan’s authorship of the poems in dispute is defended by David Laing, Ode to the Cuckoo with remarks on its authorship, in a letter to J. C. Shairp, LL.D. (1873) ”

“ He resigned his charge in 1786, retaining part of his stipend, and proceeded to London, where he became a writer for the English Review. He died on the 28th of December 1788. Two posthumous volumes of sermons appeared in 1790 and 1791. ”