The fonds consists of approximately 400 incoming letters from the Pre-Raphaelites (such as Ford Madox Brown, William Bell Scott, and D.G. Rossetti) and other nineteenth century artists to James Leathart and his wife (1853-1896).
The Angeli-Dennis collection consists of the diaries (1855-1913), manuscripts, financial records and correspondence of William Michael Rossetti. Also included are the manuscripts, correspondence and financial records of Dante Gabriel Rossetti (1842-1882), Christina Georgina Rossetti (1853-1894), Ford Madox Brown (1852-1993), Gabriele Rossetti and other members of the Rossetti family. In addition, the collection includes materials of Robert Browning, Thomas Landseer, William North, Algernon Swinburne and James Thomson.