The Collaborative International Dictionary of English v.0.48:

Harper \Harp"er\ (h[aum]rp"[~e]r), n. [AS. hearpere.]
   1. A player on the harp; a minstrel.
      [1913 Webster]

            The murmuring pines and the hemlocks . . .
            Stand like harpers hoar, with beards that rest on
            their bosoms.                         --Longfellow.
      [1913 Webster]

   2. A brass coin bearing the emblem of a harp, -- formerly
      current in Ireland. --B. Jonson.
      [1913 Webster]

WordNet (r) 3.0 (2006):

harper
    n 1: someone who plays the harp [syn: harpist, harper]

U.S. Gazetteer Counties (2000):

Harper -- U.S. County in Kansas
   Population (2000):    6536
   Housing Units (2000): 3270
   Land area (2000):     801.438699 sq. miles (2075.716613 sq. km)
   Water area (2000):    1.512849 sq. miles (3.918261 sq. km)
   Total area (2000):    802.951548 sq. miles (2079.634874 sq. km)
   Located within:       Kansas (KS), FIPS 20
   Location:             37.212521 N, 98.064464 W
   Headwords:
    Harper
    Harper, KS
    Harper County
    Harper County, KS


U.S. Gazetteer Counties (2000):

Harper -- U.S. County in Oklahoma
   Population (2000):    3562
   Housing Units (2000): 1863
   Land area (2000):     1038.996699 sq. miles (2690.988982 sq. km)
   Water area (2000):    1.960473 sq. miles (5.077601 sq. km)
   Total area (2000):    1040.957172 sq. miles (2696.066583 sq. km)
   Located within:       Oklahoma (OK), FIPS 40
   Location:             36.792489 N, 99.697855 W
   Headwords:
    Harper
    Harper, OK
    Harper County
    Harper County, OK


U.S. Gazetteer Places (2000):

Harper, IA -- U.S. city in Iowa
   Population (2000):    134
   Housing Units (2000): 61
   Land area (2000):     0.087944 sq. miles (0.227773 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.087944 sq. miles (0.227773 sq. km)
   FIPS code:            34545
   Located within:       Iowa (IA), FIPS 19
   Location:             41.363351 N, 92.051379 W
   ZIP Codes (1990):     52231
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Harper, IA
    Harper


U.S. Gazetteer Places (2000):

Harper, KS -- U.S. city in Kansas
   Population (2000):    1567
   Housing Units (2000): 787
   Land area (2000):     1.285513 sq. miles (3.329463 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.285513 sq. miles (3.329463 sq. km)
   FIPS code:            30175
   Located within:       Kansas (KS), FIPS 20
   Location:             37.285252 N, 98.026615 W
   ZIP Codes (1990):     67058
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Harper, KS
    Harper


U.S. Gazetteer Places (2000):

Harper, TX -- U.S. Census Designated Place in Texas
   Population (2000):    1006
   Housing Units (2000): 536
   Land area (2000):     56.582675 sq. miles (146.548449 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    56.582675 sq. miles (146.548449 sq. km)
   FIPS code:            32456
   Located within:       Texas (TX), FIPS 48
   Location:             30.301009 N, 99.243326 W
   ZIP Codes (1990):     78631
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Harper, TX
    Harper