When was the county, where Shelby Airport is located, established ?
Toole County, Montana Toole County is a county located in the northern portion of the U.S. state of Montana. As of the 2010 census, the population was 5,324. Its county seat is Shelby. The county was established in 1914 from parts of Hill County and Teton County and was named after Joseph Toole, the first and fourth governor of Montana. Its northern boundary is the Canada–United States border south of Alberta.
Duval County, Florida Duval County is a county located in the State of Florida. As of the 2010 census, the population was 864,263, with a 2016 estimate at 926,255. Its county seat is Jacksonville, with which the Duval County government has been consolidated since 1968. Duval County was established in 1822, and is named for William Pope Duval, Governor of Florida Territory from 1822 to 1834.