The Collaborative International Dictionary of English v.0.48:

Murphy \Mur"phy\, n.
   A potato. [Humorous] --Thackeray.
   [1913 Webster]

WordNet (r) 3.0 (2006):

murphy
    n 1: an edible tuber native to South America; a staple food of
         Ireland [syn: potato, white potato, Irish potato,
         murphy, spud, tater]

U.S. Gazetteer Places (2000):

Murphy, MO -- U.S. Census Designated Place in Missouri
   Population (2000):    9048
   Housing Units (2000): 3613
   Land area (2000):     3.965039 sq. miles (10.269404 sq. km)
   Water area (2000):    0.046730 sq. miles (0.121030 sq. km)
   Total area (2000):    4.011769 sq. miles (10.390434 sq. km)
   FIPS code:            50834
   Located within:       Missouri (MO), FIPS 29
   Location:             38.492954 N, 90.486544 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Murphy, MO
    Murphy


U.S. Gazetteer Places (2000):

Murphy, NC -- U.S. town in North Carolina
   Population (2000):    1568
   Housing Units (2000): 819
   Land area (2000):     2.280041 sq. miles (5.905278 sq. km)
   Water area (2000):    0.217232 sq. miles (0.562628 sq. km)
   Total area (2000):    2.497273 sq. miles (6.467906 sq. km)
   FIPS code:            45660
   Located within:       North Carolina (NC), FIPS 37
   Location:             35.089848 N, 84.029924 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Murphy, NC
    Murphy


U.S. Gazetteer Places (2000):

Murphy, OK -- U.S. Census Designated Place in Oklahoma
   Population (2000):    231
   Housing Units (2000): 110
   Land area (2000):     4.329513 sq. miles (11.213386 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    4.329513 sq. miles (11.213386 sq. km)
   FIPS code:            49950
   Located within:       Oklahoma (OK), FIPS 40
   Location:             36.130608 N, 95.247526 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Murphy, OK
    Murphy


U.S. Gazetteer Places (2000):

Murphy, TX -- U.S. city in Texas
   Population (2000):    3099
   Housing Units (2000): 1126
   Land area (2000):     5.254811 sq. miles (13.609898 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    5.254811 sq. miles (13.609898 sq. km)
   FIPS code:            50100
   Located within:       Texas (TX), FIPS 48
   Location:             33.010233 N, 96.606959 W
   ZIP Codes (1990):     75094
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Murphy, TX
    Murphy