K. D. Reynolds is a historian who specialises in the Victorian era. She earned her D.Phil. at the University of Oxford, where in 1995 she completed her thesis under the title "Aristocratic women and political society in early- and mid-Victorian Britain". She was a Research Editor from 1993 until 2004 for the New Dictionary of National Biography. She has contributed or revised approximately 259 articles for the online edition of the Oxford Dictionary of National Biography. Subjects have included Queen Victoria and Diana, Princess of Wales.