LEBOR GABÁLA ÉRENN: THE BOOK OF THE TAKING OF IRELAND VOL I–V ROBERT ALEXANDER STEWART MACALISTER 1932
THE HISTORY OF THE CELTIC LANGUAGE; WHEREIN IT IS SHOWN TO BE BASED UPON NATURAL PRINCIPLES, AND ELEMENTARILY CONSIDERED, CONTEMPORANEOUS WITH THE INFANCY OF THE HUMAN FAMILY LACHLAN MACLEAN 1840
THE STUDENT’S MYTHOLOGY: A COMPENDIUM OF GREEK, ROMAN, EGYPTIAN, ASSYRIAN, PERSIAN, HINDOO, CHINESE, THIBETIAN, SCANDINAVIAN, CELTIC, AZTEC, AND PERUVIAN MYTHOLOGIES C. A. WHITE 1889
GRAVE-MOUNDS AND THEIR CONTENTS; A MANUAL OF ARCHAEOLOGY, AS EXEMPLIFIED IN THE BURIALS OF THE CELTIC, THE ROMANO-BRITISH, AND THE ANGLO-SAXON PERIODS LLEWELLYNN FREDERICK WILLIAM JEWITT 1870
ISRAEL-BRITAIN; OR, ANGLO-SAXON ISRAEL : AN EXPLANATION OF THE ORIGIN, FUNCTION AND DESTINY OF THE ANGLO-CELTO-SAXON RACE IN THE BRITISH EMPIRE ADAM RUTHERFORD 1934
GODS AND FIGHTING MEN: THE STORY OF THE TUATHA DE DANAAN AND OF THE FIANA OF IRELAND LADY GREGORY 1904
SCOTCH RITE MASONRY ILLUSTRATED: THE COMPLETE RITUAL OF THE ANCIENT AND ACCEPTED SCOTTISH RITE PROFUSELY ILLUSTRATED VOL. II JONATHAN BLANCHARD 1905
DISCOVERY OF AMERICA BY THE IRISH PREVIOUS TO THE NINTH CENTURY WITH ACCOUNTS BY SCANDINAVIANS AND GERMANS TIMOTHY L. MURPHY 1889
TRACES OF THE ELDER FAITHS IN IRELAND: A FOLKLORE SKETCH: A HANDBOOK OF IRISH PRE–CHRISTIAN TRADITIONS VOL I–II WILLIAM GREGORY WOOD–MARTIN 1901
A CRITICAL HISTORY OF THE CELTIC RELIGIONS AND LEARNING: CONTAINING AN ACCOUNT OF THE DRUIDS ; OR, THE PRIESTS AND JUDGES, OF THE VAIDS, OR THE DIVINERS AND PHYSICIANS; AND OF THE BARDS, OR THE POETS AND HERALDS ; OF THE ANCIENT GAULS, BRITONS, IRISH AND SCOTS JOHN TOLAND 1814
A COMPLETE HISTORY OF THE DRUIDS; THEIR ORIGINS, MANNERS, CUSTOMS, POWERS, TEMPLES, RITES, AND SUPERSTITION; WITH AN INQUIRY INTO THEIR RELIGION, AND ITS COINCIDENCE WITH THE PATRIARCHAL T. G. LOMAX 1810