'O'Brien' definitions:

Definition of 'O'Brien'

(from WordNet)
noun
Irish writer (born in 1932) [syn: O'Brien, Edna O'Brien]

O'Brien, TX -- U.S. city in Texas

From: Gazetteer 2000
Name :
O'Brien, TX -- U.S. city in Texas
Population (2000) :
132
Housing Units (2000) :
71
Land area (2000) :
0.503577 sq. miles (1.304258 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
0.503577 sq. miles (1.304258 sq. km)
FIPS code :
53304
Located within :
Texas (TX), FIPS 48
Location :
33.379922 N, 99.841812 W
Note :
some ZIP codes may be omitted esp. for suburbs.

O'Brien -- U.S. County in Iowa

From: Gazetteer 2000
Name :
O'Brien -- U.S. County in Iowa
Population (2000) :
15102
Housing Units (2000) :
6509
Land area (2000) :
573.078149 sq. miles (1484.265528 sq. km)
Water area (2000) :
0.171193 sq. miles (0.443388 sq. km)
Total area (2000) :
573.249342 sq. miles (1484.708916 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
43.090091 N, 95.639384 W