- Author: H. Piffard Author Record # 131294
- Legal Name: Piffard, Harold Hume
- Birthplace: Marylebone, Middlesex, England, UK
- Birthdate: 1867
- Deathdate: 1938
- Language: English
- Webpages: artbiogs.co.uk, joannacolefineart.co.uk, sussexhistoryforum.co.uk, Wikipedia-EN
- Used These Alternate Names: Piffard, Harold Hume Piffard, Harold Piffard
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Cover Art
- BCSFAzine, March 2020 (2020) with Harold Piffard
- Marion Zimmer Bradley's Sword and Sorceress XXII (2007)
- Marion Zimmer Bradley's Sword and Sorceress XXII (2007) with Harold Hume Piffard
- The City of Gold: A Tale of Sport, Travel and Adventure in the Heart of the Dark Continent (1896)
- The Polyphemes: A Story of Strange Adventures Among Strange Beings (1906)
- Zoraida: A Romance of the Harem and the Great Sahara (1895)
- 'Farewell, Nikola' (1901)
- 'Farewell, Nikola' (1901) with Harold Piffard
- A Honeymoon in Space (1901) with Stanley L. Wood
- A Honeymoon in Space (1901) with Harold Piffard and Stanley Wood
- Geoffrey Harrington's Adventures (1907)
- Geoffrey Harrington's Adventures (1907) with Harold Piffard
- The City of Gold: A Tale of Sport, Travel and Adventure in the Heart of the Dark Continent (1896)
- The City of Gold: A Tale of Sport, Travel and Adventure in the Heart of the Dark Continent (1898)
- The Conversion of the Professor: A Tale of the Fourth Dimension (1899)
- The Conversion of the Professor: A Tale of the Fourth Dimension [2] (1899)
- The Conversion of the Professor: A Tale of the Fourth Dimension [3] (1899)
- The Conversion of the Professor: A Tale of the Fourth Dimension [4] (1899)
- The Daughter of the Dawn: A Realistic Story of Maori Magic (1903)
- The Daughter of the Dawn: A Realistic Story of Maori Magic (1903)
- The Daughter of the Dawn: A Realistic Story of Maori Magic (1903) with Harold Piffard
- The Daughter of the Dawn: A Realistic Story of Maori Magic (1903) with Piffard
- The Destined Maid (1898)
- The Lost Provinces: How Vansittart Came to France (1898)
- The Master of the Octopus (1899)
- The Master of the Octopus [2] (1899)
- The Master of the Octopus [3] (1899)
- The Master of the Octopus [4] (1899)
- The Polyphemes: A Story of Strange Adventures Among Strange Beings (1906)
- The Polyphemes: A Story of Strange Adventures Among Strange Beings (1906) with Harold Piffard
- The Weird of Deadly Hollow (1899)
- The Weird of Deadly Hollow (1899) with Harold Piffard
- Tom Ossington's Ghost (1898)
- Tom Ossington's Ghost (1898) with Harold Piffard
- Tom Ossington's Ghost [2] (1898)
- Tom Ossington's Ghost [2] (1898) with Harold Piffard
- Tom Ossington's Ghost [3] (1898)
- Tom Ossington's Ghost [3] (1898) with Harold Piffard
- Valdar the Oft-Born: A Saga of Seven Ages (1895)
- Valdar the Oft-Born: A Saga of Seven Ages (1895) with Harold Piffard
- Where the Air Quivered (1898)
- Where the Air Quivered (1898) with Piffard
- Where the Air Quivered [2] (1898)
- Where the Air Quivered [3] (1898)
- Where the Air Quivered [4] (1898)
- Where the Air Quivered [5] (1898)
- Where the Air Quivered [6] (1898)
- Where the Air Quivered [7] (1898)
- Where the Air Quivered [8] (1898)
- Zoraida: A Romance of the Harem and the Great Sahara (1895)
- Zoraida: A Romance of the Harem and the Great Sahara (1895) with Piffard