Letters to Birdwood: T-W including letters from Thomas Wardle, John Robinson Whitley, director-general of the German exhibition in London, and Sir Henry Trueman Wood of the Society of Arts
Letters to Birdwood: D including letters from Sir Charles Wentworth Dilke, from James Dredge, mainly concerning the Columbian Exhibition, and from Samuel and William Digby
Correspondence with Thomas Wardle and the Imperial Institute concerning a dispute over Wardle's decoration of rooms at the Institute. [see also general correspondence nos 46-62 below for other references to Wardle and the Institute]