Graham Papers. Vols. lxvii, lxviii. Correspondence with Sidney Herbert, 1st Baron Herbert of Lea, Secretary to the Admiralty (1841-1845), Secretary at War (1845-1846 and 1852-1855), Secretary of State for the Colonies (1855), Secretary of State for War (1859-1861); 1845-1861, n.d. Two volumes.
Vol. lxvii (ff. 135). 1845-May 1856. Sidney Herbert, 1st Baron Herbert of Lea: Sir James Robert George Graham, 2nd Baronet; of Netherby; statesman: Correspondence of Sir James Robert George Graham and Sidney Herbert: 1845-1861, n.d.
Vol. lxviii (ff. 132). Aug. 1856-1861, n.d. Sidney Herbert, 1st Baron Herbert of Lea: Sir James Robert George Graham, 2nd Baronet; of Netherby; statesman: Correspondence of Sir James Robert George Graham and Sidney Herbert: 1845-1861, n.d.