| HOLLEY (D R M) | Kedah and Perlis: Their Stamps and Postal History 1887-1941 [1995] | N/A |
| HOLMES (Donald B) | Air mail: an illustrated history 1793-1871 [1981] | Aviation |
| HOLMES (K S) | Operation Overlord: the sea-borne invasion of North West Europe 1944-45. History of the Army Postal Services in relation to Overlord [1984]. | Military |
| HOMER-WOOFF (GHR) | The postal history of Wallingford [1987] | N/A |
| HOMER-WOOFF (GHR) | The postal history of Newbury [1982] | N/A |
| HOMER-WOOFF (GHR) | The postal history of Reading. Parts 1 and 2 [1981-82] | N/A |
| HOMER-WOOFF (GHR) | The postal history of Abingdon [1987] | N/A |
| HONORAT (G), COMBES (G), BRUN (J) | Marques postales et obliterations 1700-1876 Bouches-du-Rhone [1966] | N/A |
| HOPKINS (A E), | Hong Kong, a study of the modern post offices in the Colony with their cancellations [1957] | N/A |
| HOPKINS (Adrian E) | Afghanistan: postal history of the Second Afghan War, 1878-1881. [1961] | Military |
| HOPKINS (Adrian E) | The British Army Post Office in North Russia 1918-1919 [1965] | Military, Russia, WW1 |
| HOPKINS (Adrian E) | A history of wreck covers originating at sea, on land & in the air, 3rd ed [1970-71] | Maritime |
| HOPKINS (Adrian E) | Ralph Allen’s own narrative 1720-1761 [1960] | N/A |
| HOPSON (S) | Seychelles. Postal history and postage stamps to 1976 [2002] | N/A |
| HORNE (Alistair) | The fall of Paris: the siege and the Commune 1870-71 [1965] | N/A |
| HORNE (J.B.) | Rhodesia and Nyasaland Postal Rates [2017] | N/A |
| HOROWICZ (Kay) compiler | A glossary of abbreviated handstruck stamps, 3rd ed [1980] | N/A |
| HORRY (David) | The encyclopaedia of British West Indies postmarks, King George VI [2007] | N/A |
| HORTON (Trevor) | IMP: a collectors guide to Royal Mail’s integrated mail processors [2000] | Mechanisation |
| HOSKING (Roger) | Paquebot cancellations of the world, 3rd ed [2000] | Maritime |
| HOSKING (Roger) | The transatlantic post office [1979] | Maritime |
| HOSKING (Roger) | An introduction to Ocean letters [2002] | Maritime |
| HOSKING (Roger) | Ocean letters – A sequel [2005] | Maritime |
| HOSKING (Roger) | Paquebot cancellations of the world, 3rd ed [2000] | Maritime |
| HOSKING (Roger) | The transatlantic post office [1979] | Maritime |
| HOSKING (Roger) | An introduction to Ocean letters [2002] | Maritime |
| HOSKING (Roger) | Ocean letters – A sequel [2005] | Maritime |
| HOSKING (Roger) | Cross-Channel & North Sea shipping services Pt 2 [1990] | Maritime |
| HOUISON (Andrew) | History of the Post Office together with an historical account of the issue of postage stamps in New South Wales [1890] | Rowland Hill |
| HOUSE OF COMMONS: | Select Committee on estimates | N/A |
| HOUSE OF COMMONS: | The House of Commons post office [1993] | N/A |
| HOUSE OF COMMONS: | Information Office | N/A |
| HOUSE OF COMMONS: | Secret Committee on the Post Office [1844] | N/A |
| HOUSE OF COMMONS: | Select Committee on Nationalised Industries | N/A |
| HOVENKAMP (Egbert) | Bridging the continents in wartime:important airmail routes 1939-1945 [2005] | N/A |
| HOWARTH (David) | The story of P&O: the Peninsular and Oriental Steam Navigation Company [1986] | Maritime |
| HOWARTH (Stephen) | The story of P&O: the Peninsular and Oriental Steam Navigation Company | N/A |
| HOWAT (J N T) | Falkland Islands Mails, the Kosmos years 1880-1900: a history of the mail contracts with the Deutsche Dampschifftsahrts Gesellschaft ‘Kosmos’ of Hamburg [1989] | Maritime |
| HOWAT (J N T) | South American packets: the British packet service to Brazil, the River Plate, the West Coast (via the Straits of Magellan) & the Falkland Islands 1808-1880 [1984] | Maritime |
| HOWE (E G) | The postage stamps and postal history of British Guiana | N/A |
| HOWLAND (WG) | Philatelic history of the war between Peru and Chile 1879-1884 [1966] | Military |
| HOYTE (Hal) | North of the Zambesi: the postmarks & postal history of Northern Rhodesia and Zambia [1983, 1984, 1986] | N/A |
| HUBBARD (Walter) | North Atlantic mail sailings 1840-75: edited by Susan M McDonald [1988] | Maritime |
| HUBINONT (Raoul) | Catalogue des estampilles et obliterations allemandes relees sur le courrier civil dans les etapes du front ouest 1914-18 [1971] | N/A |
| HUETSON (T L) | The letter delivery system in the County of Northamptonshire – circa 1850 | N/A |
| HUGGINS (A) & HOLYOAKE (A) | The Mulready Postal Stationery – Its Genesis, Production & Usage [2015] | Stationery |
| HUGGINS (Alan) | Competitive exhibiting at local society & federation level [2001] | N/A |
| HUGGINS (H) & KLEMPKA (K) | Great Britain: The 1840 Prepaid Parliamentary Envelopes [2013] | 1840 Reforms |
| HUGHMARK (Gordon A) | Stampless mail to and from Scandinavia to 1868 [1999] | N/A |
| HUNT (Bryan) | Postmarks & postal markings of Southampton 1700-1914 [1986] | N/A |
