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52 Matches Found in Index of Irish Wills, 1484 - 1858
179,194 Records Found for O'sullivan

Records available about O'sullivan include:
 30,962 Birth records
 64,841 Family tree records
 19,986 Death & burial records
 235 Newspaper articles
 18,304 Marriage & divorce records
 19,999 Census records
 24,867 Immigration, military and other family history records
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