Ó Néill, Pádraig
S-00002332ANS - Impact of the Norman Invasion on Irish Literature
Oaks, Jeffrey A
S-00001977MPR - Birth Dates of Valentinian II and Valentinian III
Obreen, H G A
S-00002611TAN - English Forces in the Netherlands
S-00002642TAN - Notes from the Netherlands
O'Brien, M A
S-00001082Corpus Genealogiarum Hiberniae (Volume 1)
Oggins, Robin S
S-00001872MPR - Hawkers and Falconers
S-00001937MPR - Richard of Ilchester's Inheritance
Oggins, Virginia Darrow
S-00001872MPR - Hawkers and Falconers
S-00001937MPR - Richard of Ilchester's Inheritance
O'Keeffe, Tadhg
S-00002530ANS - Ballyloughan, Ballymoon and Clonmore
Oliva, A M
S-00000017Genealogie Medioevali di Sardegna
Oliva, Marilyn
S-00001962MPR - Late Medieval English Nuns
S-00002023MPR - Monastic and Clerical Careers among Family Members
Oliver, Arthur Maule, OBE
S-00002657AAC - Baronies of Bolbec
Olson, Sherri
S-00001946MPR - Family Linkages and the Structure of the Local Elite
Ormerod, George
S-00001602TPG - Connexion of Arderne of Cheshire
Ormiston, (Lt-Col) T L (1922-1954)
S-00000210GMG - Early Scottish Mormaerships (Letter from Lt-Col TL Ormiston)
Orpen, Goddard Henry, LittD
S-00000059EHR - Calendar of Gormanston Register (Review)
S-00000078GMG - Origin of the Fitzmaurices
S-00001230Ireland under the Normans, 1169-1216
S-00001231Ireland under the Normans, 1216-1333
Otárola, Alfredo J
S-00000602Datos y Linajes
Owen, Dorothy M
S-00001558ANS - Bishop's Lynn
S-00002086ANS - Norman Cathedral at Lincoln
Owen, Edward, MA
S-00002658AAS - Decline of the Tudors of Penmynydd
D'Oyly Bayley, W
S-00001682TPG - Ancient Deeds, Bucks and Oxon
S-00001613TPG - Babington and D'Oyly
S-00001663TPG - Family of Hodilow
S-00001618TPG - Manor of Hutton Bonville in Birkby Parish
S-00001610TPG - Pedigree of the Early D'Oylys
S-00001665TPG - Pedigree of the Tregoze Family