The Collaborative International Dictionary of English v.0.48:

Gladstone \Glad"stone\, n. [Named after Wm. E. Gladstone.]
   A four-wheeled pleasure carriage with two inside seats,
   calash top, and seats for driver and footman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Gladstone
    n 1: liberal British statesman who served as prime minister four
         times (1809-1898) [syn: Gladstone, William Gladstone,
         William Ewart Gladstone]
    2: a large travelling bag made of stiff leather [syn:
       portmanteau, Gladstone, Gladstone bag]

U.S. Gazetteer Places (2000):

Gladstone, ND -- U.S. city in North Dakota
   Population (2000):    248
   Housing Units (2000): 106
   Land area (2000):     0.356407 sq. miles (0.923090 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.356407 sq. miles (0.923090 sq. km)
   FIPS code:            30460
   Located within:       North Dakota (ND), FIPS 38
   Location:             46.859737 N, 102.565592 W
   ZIP Codes (1990):     58630
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gladstone, ND
    Gladstone


U.S. Gazetteer Places (2000):

Gladstone, IL -- U.S. village in Illinois
   Population (2000):    284
   Housing Units (2000): 146
   Land area (2000):     0.393279 sq. miles (1.018589 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.393279 sq. miles (1.018589 sq. km)
   FIPS code:            29431
   Located within:       Illinois (IL), FIPS 17
   Location:             40.864568 N, 90.958815 W
   ZIP Codes (1990):     61437
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gladstone, IL
    Gladstone


U.S. Gazetteer Places (2000):

Gladstone, OR -- U.S. city in Oregon
   Population (2000):    11438
   Housing Units (2000): 4419
   Land area (2000):     2.476277 sq. miles (6.413527 sq. km)
   Water area (2000):    0.047863 sq. miles (0.123964 sq. km)
   Total area (2000):    2.524140 sq. miles (6.537491 sq. km)
   FIPS code:            29000
   Located within:       Oregon (OR), FIPS 41
   Location:             45.385642 N, 122.592725 W
   ZIP Codes (1990):     97027
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gladstone, OR
    Gladstone


U.S. Gazetteer Places (2000):

Gladstone, MI -- U.S. city in Michigan
   Population (2000):    5032
   Housing Units (2000): 2289
   Land area (2000):     4.956658 sq. miles (12.837685 sq. km)
   Water area (2000):    2.928697 sq. miles (7.585289 sq. km)
   Total area (2000):    7.885355 sq. miles (20.422974 sq. km)
   FIPS code:            32300
   Located within:       Michigan (MI), FIPS 26
   Location:             45.845808 N, 87.030235 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gladstone, MI
    Gladstone


U.S. Gazetteer Places (2000):

Gladstone, MO -- U.S. city in Missouri
   Population (2000):    26365
   Housing Units (2000): 11919
   Land area (2000):     7.996100 sq. miles (20.709802 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    7.996100 sq. miles (20.709802 sq. km)
   FIPS code:            27190
   Located within:       Missouri (MO), FIPS 29
   Location:             39.211752 N, 94.561687 W
   ZIP Codes (1990):     64118
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gladstone, MO
    Gladstone