Vol. XXI (ff. 244). 1861-27 Jan. 1863. includes: f. 242 Edward Mortimer Archibald, British Consul in New York; KCM G 1882: Letter to E. Hammond(?): 1863.
Vol. XXIV (ff. 274). 19 Nov. 1865-17 Nov. 1875. includes: ff. 169, 184 Edward Thornton, KCB 1870. Envoy to Brazil 1865, Minister to USA 1867: Letters to E. Hammond: 1873.: Extracts.
Vol. XXVII (ff. 223). 1879-17 Aug. 1881. includes: f. 47 b Jacob van Wyngaerden, Heer van Benthuyse, Dutch Ambasador to England: Patent of knighthood for: 1621: Lat.: Draft.f. 52 Nerses, Armenian Patriarch of Constantinople: Letter to Lord Hammond: 1879.: Fr.: Copy.
Vol. XXIX (ff. 201). 1862-11 Nov. 1865. includes: f. 115 John Russell, 1st Earl Russell; Prime Minister: Correspondence with Sir A. H. Layard: 1853-1871.f. 115 Sir Austen Henry Layard, GCB; diplomatist and archaeologist: Correspondence with Lord J. Russell: 1853-1871.
Vol. XXXI (ff. 379). 1872- 1885. includes: f. 36 Richard Bickerton Pemell Lyons, 2nd Baron Lyons; Viscount Lyons 1887: Letters to Sir A. H. Layard: 1866-1887.f. 172 John Prat, Consul at Barcelona: Letters to Sir A. H. Layard: 1873-1877.f. 212 Bulgaria: Newspaper extract on the Roumelian ...