Agents persons, peoples and institutions
- 16th century
Ó Duibhir (Donncha) See: Donnchadh Ó Duibhir
- d. 1980
- fl. 1704
Ó Duinn (Tadhg mac Amhalghadh) See: Tadhg mac Laighnigh Ó Duinn
Ó Duinn (Tadhg mac Amhlaidh) See: Tadhg mac Laighnigh Ó Duinn
- fl. late 15th century
- fl. 1550s–1600s
- County Laois
- 1715–c.1788
Ó Fearghaile (Seaghan S.) See: John J. O'Farrelly
Ó Fearghusa (Seán) See: John Fergus