Photographs, 1880-1951, (fols. 1-27) Isobel Mackinnon Gray (Addison's first wife), c.1880-1920s; (fols. 35-71) Christopher and Isobel Addison and family, including their son Paul who died c.1912, Michael and Kay's wedding, 1936, Swindon General Election, 1931, family homes, c.1902-1936; (fols. 72-90) Christopher and Dorothy Addison at Radnage, c.1937-1951; (fols. 91-123) official occasions, including coronation of George VI, c.1930s-1951, and (fols. 124-133) 'Distinguished men', including Sir Henry Birchenough, Lord Stevenson, Vaughan Nash, Sir Herbert Morgan and Sir Joseph Flavelle, with Madge White (Addison's Secretary), c.1914-1918.