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| GRAVESON (Samuel) editor | Penny post centenary: an account of Rowland Hill’s great reform of 1840 & the introduction of adhesive postage stamps [1940] | Rowland Hill |
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| GREEN (D M) | The French Influence on the Saar and its posts 1670-1959 | N/A |
| GREEN (D M) | The Intriguing History of the Saar since the end of the second world war | N/A |
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| GREENWOOD (J) | The posts of Sussex: the Chichester branch 1250-1840 [1973] | N/A |
| GREENWOOD (Jeremy) | Newspapers and the Post Office 1635-1834 [1971] | Newspapers |
| GREENWOOD (Richard), | Portuguese shipping companies, paquebot & ship cancellations [1983] | Maritime |
| GREGORY (W) compiler | Ralph Allen and Prior Park [1886] | N/A |
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| GRIEVE (Hilda E P) | Some examples of English handwriting from Essex… archives of the 12th to the 17th century [1949] | N/A |
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| GRIFFITHS (Keith A) | New Zealand airgraph service 1942-1945 | Aviation |
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| GUDENKAUF (G) | Belgian Congo: mailboat steamers on Congo rivers & lakes (1896-1940); postal history & cancellations [1985] | Maritime |
| GUDENKAUF (G) | Belgian Congo; postal history of the Lado enclave 1897-1910 [1987] | N/A |
| GUDENKAUF (G) | Mailboat services from Europe to the Belgian Congo (1879-1922) [1982] | Maritime |
| GUERRIER (P) | Marque de Franchise entre les couvents Francais des Carmelites theresiennes au xviii siecle [1986] | France, Official |
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| GUINOVART (Jorge) | Prefilatelia espanola: estudio de las marcas postales de espana y sus dominios de Indias, siglos XVIII y XIX 2 vols [1971] | N/A |
| GUMMESSON (Rolf), | Suomen vanhimmat paikkakuntaleimat / The early postmarks of Finland [1974] | N/A |
| GURNEY (David) | The Channel Islands sub-post offices and their postmarks [1983] | N/A |
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| GURNEY (David) | The postal history of the Guernsey sub-post offices [1996] | N/A |
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| GURNEY (David) | Letter Forwarding Agnets of Great Britain handling Channel Islands Letters 1673-1855 [2011] | Forwarding Agents |
| GUZZI (Giampaolo) | L’occupazione italiana di Mentone (1940-1943) storia postale / l’occupation italienne de Menton | Military, WW2 |
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| GWYNN (R) | Railway Disaster Mail [2010] | Railways |
| GWYNN (Robin) | Maritime disaster mail: a study of mail salvaged from maritime disasters, as casualties of collisons, fires, | N/A |
| HAALEBOS (J) | K.P.M. Koninklijke Paketvaart Maatschappij (1891-1941) with Java – China – Japan – Line to 1970 | N/A |
| HAAN (D W De) | Postzaken: overland mail 1840-1850 [1973] | N/A |
| HAASE (Ynez) | Historical atlas of California [1974] | N/A |
| HADLOW (Richard) | The Republic of Venice posts – to 1797 | N/A |
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| HAGLER (Helen), | HMR priced guide to philatelic literature: a master list of philatelic literature, 2nd ed | N/A |
| HAGLER (Irving) | HMR priced guide to philatelic literature: a master list of philatelic literature, 2nd ed [1971] | N/A |
| HAGLER (Robert), | HMR priced guide to philatelic literature: a master list of philatelic literature, 2nd ed | N/A |
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| HAHN (Mannel) editor | Postal markings of the United States 1847-1851 [1938] | N/A |
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