Bunbury, Henry. Memoir and literary remains of Lieutenant-General Sir Henry Edward Bunbury, (1868) WAM-DA-0314.Image_2.034323

Lady Cullum was probably Ann Lloyd Cullum, widow of Sir Thomas Grey Cullum, the 8th and last baronet of Hastede. Sir Thomas died in 1855; Ann in 1875. https://www.sworder.co.uk/news/The-Diaries-Of-A-Lady/ The Cullums and the Bunburys both seem to have lived in or near Bury St Edmunds, Suffolk.