The correspondence deals in large part with surveys, leases, and other business relating to estates in Morayshire and elsewhere in Scotland. Sir George Brown's letters refer to regimental matters and to general affairs in the places where he is stationed - London, various Mediterranean stations, 1822-1836, Ireland, 1825, 1837, and the Crimea, 1854. Among the correspondents are: William Leslie, the eccentric Minister of Lhanbryde, 1811, 1816, undated; William Young Sellar and his relatives, 1849-1850; and Dr Robert Wilson, regarding the bequest of his museum to Aberdeen University, ?circa 1862.