Henry Peach Robinson, 1869, Dr. Hugh Welch Diamond, Albumen print, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/22848, LL/51608

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 6, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24917, LL/51625

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20198, LL/51636

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 13, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24915, LL/51626

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 1, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24914, LL/51627

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 3, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24913, LL/51628

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 10, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24912, LL/51629

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24911, LL/51630

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 5, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24910, LL/51631

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, no. 9, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24909, LL/51632

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24177, LL/51633

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/24176, LL/51634

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20564, LL/51635

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20186, LL/51637

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20185, LL/51638

Hugh Welch Diamond, 1852 (ca), Mental Patient, Albumen print, from wet collodion negative, 68 x 53mm, Royal Photographic Society, © Royal Photographic Society, 1999, LL/6811

Hugh Welch Diamond, 1855, Mental patient, Royal Photographic Society, Courtesy Royal Photographic Society, Bath, England, LL/33151

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20184, LL/51639

Hugh Welch Diamond, 1855 (ca), Portrait of a patient from Surrey County Asylum, Salt print, from calotype negative, National Science and Media Museum, The Royal Photographic Society Collection, Inventory no: 2003-5001/2/20183, LL/51640

Hugh Welch Diamond, 1850-1858, Patient, Surrey County Lunatic Asylum, Albumen silver print, from glass negative, 19.1 x 14 cm (7 1/2 x 5 1/2 ins), Metropolitan Museum of Art, Gilman Collection, Purchase, Ann Tenenbaum and Thomas H. Lee Gift, 2005, Accession Number: 2005.100.19, LL/40552

Hugh Welch Diamond, 1855 (ca), Seated Woman with Bird, Albumen print, 7 1/2 x 5 11/16 ins, J. Paul Getty Museum, 84.XP.927.3, LL/42588

Hugh Welch Diamond, 1855 (ca), Portrait of a patient at the Surrey County Asylum [Springfield near Wandsworth, England], Salt print, National Science and Media Museum, The Royal Photographic Society, Ref Number: 2003-5001/2/20184, LL/41839

Hugh Welch Diamond, 1858, Illustration for The Physiognomy of Insanity, by Dr. Conolly, Journal illustration, Google Books, LL/50009

Hugh Welch Diamond, 1858, Illustration for The Physiognomy of Insanity, by Dr. Conolly, Journal illustration, Google Books, LL/50010

Hugh Welch Diamond, 1858, 16 Jan (published), Illustration "Suicidal Melancholy" for The Physiognomy of Insanity, by Dr. Conolly, Journal illustration, Google Books, LL/50011

Hugh Welch Diamond, 1858, 17 July, Advert for The Physiognomy of Insanity, by Dr. Conolly. Photographs taken from Life. By Dr. Diamond (The Atheneum, No. 1603, p.91), Advert, Google Books, LL/50008