Comprises:

Item 1: Golden Wedding of Ernest and Elizabeth de Bunsen, including letters of congratulation, letters to Maurice de Bunsen, guest lists, visitors' album, including printed description of celebrations, Jul 1895-Aug 1895.

Item 2: Baroness Deichmann and Aliens Advisory Committee, including letters and papers on proposed internment of Baroness Deichmann and restrictions on her freedom of movement, 1918-1919.

Item 3: Family letters about Marie de Bunsen's death and her estate, 1925-1928.

Item 4: Marie de Bunsen's diary, including voyage on Ada (4-13 Sep 1875), Oxford Commemoration parties, including dances and picnics with Prince Leopold (19-22 Jun 1876) and visit to Eastbourne with Grand Duchess of Baden (4-9 Sep 1879), 1875-1879.