Papers relating to Addison and his family, and to his medical career, 1883-1939, (fols. 1-40) literary and other papers including, (fol. 5) record of money loaned to Addison by his father while a student, 1886-1891, (fols. 11, 21, 29-41) papers relating to Michael Addison, 1914-1936, (fols. 13-19) papers concerning dinner in honour of Addison, June 1921, (fol. 20) obituary of F. Percy Low (Dorothy's father), 1939, (fols. 22-28) Trinity College, Catalogue of library books (1883), (fols. 29-33) Christopher and Isobel Addison's wedding service, 1902, and (fols. 42-198) 'Personal Series No. 1', correspondence, examination certificates and other papers, relating to Addison's medical career, 1886-1912, including (fols. 51a-b) commission in the First Hallamshire Volunteer Battalion, 1900, with (fols. 127-134) photographs of human organs including first x-ray of the kidney, and (fols. 135-198) articles by Addison on his anatomical and medical research, 1895-1908.