Question

Where in Ireland was he born ?

Answer 1

I suspect this is the family in the 1870 Census, New York City:

Name:	Bernard Oconnor
Age in 1870:	62
Birth Date:	abt 1808
Birthplace:	Ireland
Dwelling Number:	42
Home in 1870:	New York Ward 6 District 2 (2nd Enum), New York, New York
Gender:	Male
Post Office:	New York City
Occupation:	Tailor
Inferred Spouse:	Margaret Oconnor
Inferred Children:	John OconnorBernard OconnorWilliam OconnorGeo OconnorCharles OconnorPeter OconnorMaggie Oconnor
Household Members Age Bernard Oconnor 62 Margaret Oconnor 60 John Oconnor 23 Bernard Oconnor 21 William Oconnor 11 Geo Oconnor 10 Charles Oconnor 7 Peter Oconnor 5 Maggie Oconnor 2

Source Citation

Year: 1870; Census Place: New York Ward 6 District 2 (2nd Enum), New York, New York; Roll: M593_1017; Page: 235A

Source Information

Ancestry.com. 1870 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2009. Images reproduced by FamilySearch.

Original data:

• 1870 U.S. census, population schedules. NARA microfilm publication M593, 1,761 rolls. Washington, D.C.: National Archives and Records Administration, n.d.