What is "dennis acres"

Population (2000): 68
Housing Units (2000): 29
Land area (2000): 0.046712 sq. miles (0.120984 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.046712 sq. miles (0.120984 sq. km)
FIPS code: 19090
Located within: Missouri (MO), FIPS 29
Location: 37.047450 N, 94.503801 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
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