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Dermot O Sullivan

Dermot O was born in 1691 in Ireland.¹ Dermot O's father was Phillip O Sullivan. His paternal grandfather is Owen O Sullivan and his paternal grandmother was Mary McSweeney. He had three half-brothers named John Owen, Daniel O and Patrick O. He died1795 in Cloone, Ireland.¹

Ancestor Pedigree Chart
- Daniel Sullivan ^*
  
  Philip Sullivan
  
  Margaret ClanCarthy
  
  Daniel O Sullivan
  - b.  1610 in Lord Bearehaven
  
  Donogh ClanCarthy
  
  Lady Honora ClanCarthy
  
  Lady Ellen Butler
  
  Owen O Sullivan
  - b.  1620
  
  Conor Brien
  
  Sarah O Brien
  
  Phillip O Sullivan
  - b.  1640 in Ardee, Louth, Ireland d.1691 in France
  
  Owen McSweeney
  
  Mary McSweeney
  - b.  1849 in Cork, Ireland d.Mar 5th, 1925 in Cambridge, Massachusetts, USA
  
  Dermot O Sullivan
  - b.  1691 in Ireland d.1795 in Cloone, Ireland
  
  ^*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)

¹ One World Tree (sm)