1. ‘Proceedings of Captn Owen of HMS Leven at Bombassa [Mombasa] – Memorial to His Majesty from the Imaum of Muskat complaining of Captn Owens conduct in accepting the cession of the Island of Bombassa to the British Government’ Date: 1802/1825 Language: English Geographic region: Bombassa
2. ‘Proceedings connected with the concessions made by the Imaum of Muscat for the suppression of the Slave Trade with Europeans vol 1’ Date: 1818/1824 Language: English Geographic region: ZanzibarBombassa
3. ‘Proceedings connected with the concessions made by the Imaum of Muscat for the suppression of the Slave Trade with Europeans vol 3’ Date: 1823/1826 Language: English Geographic region: ZanzibarJohannaBombassaMadagascar
4. 'Outward Let[ters], Book No 42, 1st January 1826 to 31 July 1826' Date: 1826/1826 Language: English Geographic region: BussoraBombassa
