Robert Louis Stevenson (2015). “Collected Memoirs, Travel Sketches and Island Literature of Robert Louis Stevenson: Autobiographical Writings and Essays by the prolific Scottish novelist, poet and travel writer, author of Treasure Island, The Strange Case of Dr. Jekyll and Mr. Hyde, Kidnapped & Catriona”, p.452, e-artnow
Robert Louis Stevenson, Fanny Van de Grift Stevenson, Lloyd Osbourne (1910*). “"Virginibus puerisque" and other papers. Memories and portraits. Familiar studies of men and books”