Documents relating to William Parker's naval career during the War in the River Plate. Includes folder (item /1) summarising contents in English (by depositor). Contains:

• /2: Note directing Parker to take charge of the schooner Bella Maria, signed by Barão do Rio da Prata (14 Aug 1827). Portuguese.
• /3: List, headed 'Nomes dos S. Comm.es qui recebem parte de preza do frigate capturado pela 2a Divisaõ; vendido via Colonia por 650p.' Names of the captains of nine ships and her officers. Parker's name appears under the ship Carioca, on which he served as First Lieutenant (Apr-Aug 1827). Portuguese.
• /4: Document confirming Parker in his new post of Lieutenant Captain; signed and sealed by Emperor Pedro I, 12 Dec 1827, with other signatures added 26 Mar 1828 and 4 Aug 1829. Portuguese.
• /5: 'Distribuicão do producto da scuna aprezada Uniao entre os brigues Maranhão e Constança, e a Jurujuba a verta.' Includes list of claimants and the amount due to each. Names include Alexander William Anderson and John Marron (c1827). Portuguese.
• /6: Note directing Parker to take control of the brig Constança, signed by Barão do Rio da Prata (27 Apr 1828). Portuguese.
• /7: Note directing Parker to take control of the corvette Carioca, signed by Barão do Rio da Prata (13 Jul 1828). Portuguese.
• /8: Chart entitled 'Prezas feitas em 1828 na esquadra do Rio del Prata' containing details of the types of ship taken, their names and nationalities, where and when taken. Annotations by Parker (Sep? 1828). Portuguese.
• /9: List of figures, relating to the schooner Union (n.d.). Portuguese. Not listed on folder.