The Collaborative International Dictionary of English v.0.48:

Thatcher \Thatch"er\, n.
   One who thatches.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Thatcher
    n 1: British stateswoman; first woman to serve as Prime Minister
         (born in 1925) [syn: Thatcher, Margaret Thatcher,
         Margaret Hilda Thatcher, Baroness Thatcher of Kesteven,
         Iron Lady]
    2: someone skilled in making a roof from plant stalks or foliage

U.S. Gazetteer Places (2000):

Thatcher, AZ -- U.S. town in Arizona
   Population (2000):    4022
   Housing Units (2000): 1427
   Land area (2000):     4.374706 sq. miles (11.330435 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    4.374706 sq. miles (11.330435 sq. km)
   FIPS code:            73420
   Located within:       Arizona (AZ), FIPS 04
   Location:             32.832685 N, 109.762879 W
   ZIP Codes (1990):     85552
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Thatcher, AZ
    Thatcher