What is "byrnes mill"

Population (2000): 2376
Housing Units (2000): 935
Land area (2000): 4.958160 sq. miles (12.841574 sq. km)
Water area (2000): 0.136686 sq. miles (0.354015 sq. km)
Total area (2000): 5.094846 sq. miles (13.195589 sq. km)
FIPS code: 10240
Located within: Missouri (MO), FIPS 29
Location: 38.435197 N, 90.573838 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: