Correspondence between Edward Smith-Stanley, Earl of Derby, and David William Mitchell regarding a list of desirables from the sale catalogue of the aviary and menageries at Knowsley Hall
Letters from Gerald Chetwynd Talbot, Private Secretary to the Governor General of India, to David William Mitchell regarding occurrences in the upper provinces of India which prevent the sending of Himalayan birds to England and the agent sent to Calcutta by the Zoological Society of London, a wild goat sent for presentation to Prince Albert, and a collection of hill birds for Prince Albert
Articles of Agreement and correspondence between John Warwick with the Zoological Society of London and the Earl of Derby regarding a voyage to Egypt and Nubia to procure live animals and birds for the Zoological Society of Lonon
Letters from Robert A Mitchell to Philip Lutley Sclater regarding committee meetings of the Zoological Society of London and the settlement of his late brother's affairs and a claim by the Zoological Society
Letters from Upton, Upton & Johnson regarding the Zoological Society of London's claim against Mr Mitchell's late brother and late Secretary of the Society, Mr David William Mitchell
Correspondence between W Batty of Astley's Amphitheatre, to David William Mitchell regarding the price for two elephants
Correspondence between Edward Blyth and David William Mitchell regarding the shipment of animals to the Zoological Society of London
Correspondence between Hamet Saffi Canaana, the Keeper of Obaysch, and David William Mitchell regarding his service at the Zoological Society of London, with receipts
Letter from David William Mitchell to John Alexander Hope, 6th Earl of Hopetoun, regarding his membership of the Zoological Society of London
Letters from Charles Augustus Murray to David William Mitchell regarding the shipment of animals to the the Gardens of the Zoological Society of London from Egypt, with receipts