The Collaborative International Dictionary of English v.0.48:

Barton \Bar"ton\ (b[aum]r"t[u^]n), n. [AS. beret[=u]n courtyard,
   grange; bere barley + t[=u]n an inclosure.]
   1. The demesne lands of a manor; also, the manor itself.
      [Eng.] --Burton.
      [1913 Webster]

   2. A farmyard. [Eng.] --Southey.
      [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

BARTON, old English law. The demesne land of a manor; a farm distinct from
the mansion.



U.S. Gazetteer Counties (2000):

Barton -- U.S. County in Kansas
   Population (2000):    28205
   Housing Units (2000): 12888
   Land area (2000):     894.003880 sq. miles (2315.459321 sq. km)
   Water area (2000):    6.460478 sq. miles (16.732561 sq. km)
   Total area (2000):    900.464358 sq. miles (2332.191882 sq. km)
   Located within:       Kansas (KS), FIPS 20
   Location:             38.438130 N, 98.767467 W
   Headwords:
    Barton
    Barton, KS
    Barton County
    Barton County, KS


U.S. Gazetteer Counties (2000):

Barton -- U.S. County in Missouri
   Population (2000):    12541
   Housing Units (2000): 5409
   Land area (2000):     594.249965 sq. miles (1539.100279 sq. km)
   Water area (2000):    2.473064 sq. miles (6.405206 sq. km)
   Total area (2000):    596.723029 sq. miles (1545.505485 sq. km)
   Located within:       Missouri (MO), FIPS 29
   Location:             37.497277 N, 94.325534 W
   Headwords:
    Barton
    Barton, MO
    Barton County
    Barton County, MO


U.S. Gazetteer Places (2000):

Barton, MD -- U.S. town in Maryland
   Population (2000):    478
   Housing Units (2000): 233
   Land area (2000):     0.224430 sq. miles (0.581272 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.224430 sq. miles (0.581272 sq. km)
   FIPS code:            04625
   Located within:       Maryland (MD), FIPS 24
   Location:             39.531693 N, 79.017077 W
   ZIP Codes (1990):     21521
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Barton, MD
    Barton


U.S. Gazetteer Places (2000):

Barton, VT -- U.S. village in Vermont
   Population (2000):    742
   Housing Units (2000): 465
   Land area (2000):     1.247558 sq. miles (3.231160 sq. km)
   Water area (2000):    0.182479 sq. miles (0.472618 sq. km)
   Total area (2000):    1.430037 sq. miles (3.703778 sq. km)
   FIPS code:            03475
   Located within:       Vermont (VT), FIPS 50
   Location:             44.747876 N, 72.175850 W
   ZIP Codes (1990):     05822
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Barton, VT
    Barton