The following is the entry for Richard Borough Crawford in William O'Byrnes 1849 'Naval Biographical Dictionary'.
CRAWFORD. (Commander, 1842.)Richard Borough Crawford entered the Navy 1 Aug. 1814; and, when Midshipman of the Esk, was wounded in command of a prize, and officially noticed for his gallantry in beating off, after an action of two hours, a piratical vessel of far superior force. He passed his examination in 1821; obtained his first commission 22 Sept. 1826; and was subsequently appointed – 3 April, 1830, to the Donegal 78, Capt. John Dick, at Sheerness – 17 May, 1831, to the command of the Charybdis brig, on the coast of Africa – and, 31 March, 1838, to an agency for transports afloat. For his services as a volunteer during the Chinese campaign, Mr. Crawford was advanced to the rank he now holds 23 Dec. 1842. He assumed command, 7 Sept. 1844, of the Mutine 12, which sloop, after intermediately cruizing for the suppression of the slave-traffic in the Mozambique Channel, he paid off in 1846. He is now unemployed. Agents – Messrs. Stilwell.