Grant Duff Douglas Ainslie (1865–1948) was a Scottish poet, translator, critic and diplomat. A contributor to the Yellow Book, he met and befriended Oscar Wilde at age twenty-one while an undergraduate at Oxford. He was also associated with other such notable figures as Aubrey Beardsley and Walter Pater. The first translator of the Italian philosopher Benedetto Croce into English, he also lectured on Hegel. He was identified as the "Dear Ainslie" recipient of twelve letters written by Arthur Conan Doyle in 1895 - 1896, which were auctioned by Christie's in 2004. (http://www.bestofsherlock.com/ref/200405christies_lots.htm) See "The Identification of Ainslie" by Al Dawson in "The Magic Door", v. 14, no. 2 (Summer 2012), pp. 1,6,7 - a publication of The Friends of the Arthur Conan Doyle Collection, Toronto Public Libraries.