В 1943 году под своей девичьей фамилией Хильда Эллис опубликовала первую книгу «Дорога к Хель: исследование представления о смерти в скандинавской литературе»[2].
В 1980 году Эллис-Девидсон приступила к написанию биографии писательницы и фольклориста Кэтрин Мэри Бриггс[англ.], которая была издана в 1985 году[4]. В 1984 году за эту книгу она была награждена Медалью Кут Лэйка, премией фольклорного общества, а в 1988 году её книга «Мифы и символы языческой Европы» была отмечена премией Кэтрин Бригсс как книга года[5].
В своих поздних работах Эллис-Девидсон сосредоточилась на культурных и религиозных связях между германскими и кельтскими народами, итоги исследования которых ей были представлены в 1990-е годы на Симпозиумах скандинаво-кельто-балтийских легенд[6].
В 2006 году вступила в Кембриджскую фольклорную группу[7]. Она также являлась звонарём и церковным старостой в местной приходе[4].
(1950) «The Hill of the Dragon» (Anglo-Saxon Burial Mounds), Folklore 61.
(1950) «Gods and Heroes in Stone» In C. Fox and B. Dickens (eds.), The Early Cultures of North-West Europe (H.M. Chadwick Memorial Studies), 123-9, London.
(1958) The Golden Age of Northumbria, Longmans, [a volume in the «Then and There Series»].
(1958) "Weland the Smith, " Folklore 69: 145-59.
(1960) «The Sword at the Wedding» Folklore 71, 1-18.
(1962) The Sword in Anglo-Saxon England, Boydell Press, Woodbridge.
(1963) «Folklore and Man’s Past», Folklore, 74: 527-44, London.
(1964) Book Review: Myth and Religion of the North by E. O. G. Turville-Petre. London: Weidenfeld and Nicholson (History of Religion), 1964. Antiquity 38: 309—310.
(1964) Gods and Myths of Northern Europe, Penguin Books Ltd, Harmondsworth. (later re-published as Gods and Myths of the Viking Age, Bell Publishing Company, 1980).
(1965) «The Finglesham Man», Sonia Chadwick Hawkes, H.R.E Davidson and C. Hawkes, Antiquity, 39: 17-32.
(1965) «Thor’s Hammer», Folklore 76: 1-15.
(1965) «The Significance of the Man in the Horned Helmet», Antiquity 39: 23-7.
(1967) Pagan Scandinavia, (Ancient Peoples and Places 58) London.
(1967) «The Anglo-Saxon Burial at Coombe [Woodnesborough], Kent», Medieval Archeology 11: 1-41 (by H.E. Davidson and L. Webster).
(1969) Scandinavian Mythology, Paul Hamlyn, London.
(1969) The Chariot of the Sun and Other Rites and Symbols of the Northern Bronze Age, by Peter Gelling and H.E. Davidson, Frederick A. Praeger Publishers, New York.
(1969) «The Smith and the Goddess», Frühmittelalterliche Studiern (University of Münster) 3: 216-26.
(1971) Beowulf and its Analogues, by George Norman Garmonsway, Hilda Roderick Ellis Davidson, and Jacqueline Simpson; E. P. Dutton.
(1972) «The Battle God of the Vikings», (G.N. Garmonsway Memorial Lecture, University of York, Medieval Monographs I, York.
(1973) «Hostile Magic in the Icelandic Sagas», The Witch Figure, ed. V. Newall (london) 20-41.
(1974) «Folklore and History», Folklore 85.
(1975) «Scandinavian Cosmology» in C. Blacker and M. Loewe’s Ancient Cosmologies, 172-97, London.
(1975) «Folklore and Literature», Folklore 86.
(1976) The Viking Road to Byzantium, Allen and Unwin, London.
(1978) Patterns of Folklore, D.S. Brewer Ltd, Ipswich. [Appears to reprint earlier articles such as «Thor’s Hammer» and «The Sword at the Wedding» also includes an essay on «Lady Godiva»].
(1978) «Shape-changing in the Old Norse Sagas» in J.R. Porter’s and W.H.S. Russell’s Animals in Folklore, 126-42 Folklore Society, Ipswich.
(1978) «Mithras and Wodan», Études Mithraïques 4: 99-110, Acta Iranica, Leiden.
(1979) «Loki and Saxo’s Hamlet», The Fool and the Trickster; Studies in Honor of Enid Welsford, ed. P.V.A. Williams (Cambridge) 3-17.
(1979-80) Saxo Grammaticus, The History of the Danes, Books I—IX [Peter Fisher Translation]: Edited with Commentary by H.E. Davidson, Woodbridge: Boydell.
(Date unknown, pre-1980) Author of the article «Hero» in Encyclopædia Britannica.
(1980) «Wit and Eloquence in the Courts of Saxo’s Early Kings», «To be published as part of the Saxo Symposium, University of Copenhagen 1979.»
(1980) «Insults and Riddles in the Edda Poems», Published in Edda, A Collection of Essays, 25-46, University of Manitoba Icelandic Series 4, 1983.
(1981) «The Restless Dead: An Icelandic Story», in H.E. Davidson and W.M.S. Russell’s (eds.) The Folklore of Ghosts, Mistletoe Series 15, London Folklore Society.
(1981) «The Germanic World» in M. Loewe and C. Blacker’s Divination and Oracles,115-41, London.
(1984) «The Hero in Tradition and Folklore: Papers Read at a Conference of the Folklore Society Held at Dyffryn House, Cardiff, July 1982» (World Bibliographical Series), Folklore Society Library.
(1984) «The Hero as a Fool: The Northern Hamlet», The Hero in Tradition and Folklore, (ed. H.R.E. Davidson) 30-4, (Mistletoe Books, 19, Folklore Soc.) London,
(1988) Myths and Symbols in Pagan Europe: early Scandinavian and Celtic religions, Manchester University Press, Manchester.
(1989) The Seer in Celtic and Other Traditions, ed. by Hilda Ellis Davidson, John Donald Publishers, Ltd., Edinburgh, 1989.
(1989) «Hooded men in Celtic and Germanic Tradition» in G. Davies, Polytheistic Systems, Cosmos 5, 105—124.
(1989) «The Training of Warriors» in S. C. Hawkes, Weapons and Warfare in Anglo-Saxon England.
(1990) «Religious Practices of the Northern Peoples in Scandinavian Tradition», Temonos 26:23-24
(1992) «Human Sacrifice in the Late Pagan Period of North-Western Europe» in M.O.H. Carver’s The Age of Sutton Hoo: The Seventh Century in North-Western Europe, 331-40, Woodbridge.
(1992) «Royal Graves as Religious Symbols» in W. Filmer-Sankey’s Anglo-Saxon Studies in Archeology and History 5, 23-31, Oxford.
(1993) Boundaries and Thresholds: papers from a colloquium of the Katherine Briggs Club (editor).
(1996) «Milk and the Northern Goddess» in S. Billington’s and M. Green’s The Concept of the Goddess, Routledge, New York. [This work is a tribute to Davidson].