Gasconade County :
Organized November 25,1820 (effective January 1, 1821 from Franklin County and named for the Gasconade   
River...........
Osage County :
Organized January 29,1841 from Gasconade County and named for the Osage river. The name Osage is          
generally believed to be a corruption by the French of Washazhe...........
Dade County :
Organized December 29, 1841, from Barry and Polk Counties and named for francis L. Dade, pioneer settler
Franklin County :
Organized December 11,1818 (effective January 1, 1821) from St Louis County and named for Benjamin            
Franklin.
What is the Origin of "Missouri" ?
Missouri get its name from the tribe of Sioux Indians of the state called the Missouris. The word "Missouri" often has been
construed to mean "Muddy water" but the Smithsonian Institution Bureau of American Ethnology has stated it means "town of
the large canoes," and authorities have said the Indian syliables from which the word comes mean "wooden canoe people" of
"he of the big canoe."
Gasconade County, Missouri
Osage County, Missouri
Franklin County, Missouri
Dade County, Missouri
Missouri Compromise
Civil War in Missouri
Fort Osage, Missouri