The Collaborative International Dictionary of English v.0.48:

Havelock \Hav"e*lock\ (h[a^]v"[-e]*l[o^]k), n. [From Havelock,
   an English general distinguished in India in the rebellion of
   1857.]
   A light cloth covering for the head and neck, used by
   soldiers as a protection from sunstroke.
   [1913 Webster]

WordNet (r) 3.0 (2006):

havelock
    n 1: a cloth covering for a service cap with a flap extending
         over the back of the neck to protect the neck from direct
         rays of the sun

U.S. Gazetteer Places (2000):

Havelock, NC -- U.S. city in North Carolina
   Population (2000):    22442
   Housing Units (2000): 6783
   Land area (2000):     16.711609 sq. miles (43.282867 sq. km)
   Water area (2000):    0.857416 sq. miles (2.220696 sq. km)
   Total area (2000):    17.569025 sq. miles (45.503563 sq. km)
   FIPS code:            30120
   Located within:       North Carolina (NC), FIPS 37
   Location:             34.882736 N, 76.909230 W
   ZIP Codes (1990):     28532
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Havelock, NC
    Havelock


U.S. Gazetteer Places (2000):

Havelock, IA -- U.S. city in Iowa
   Population (2000):    177
   Housing Units (2000): 95
   Land area (2000):     0.563232 sq. miles (1.458764 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.563232 sq. miles (1.458764 sq. km)
   FIPS code:            35130
   Located within:       Iowa (IA), FIPS 19
   Location:             42.833367 N, 94.701762 W
   ZIP Codes (1990):     50546
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Havelock, IA
    Havelock