On April 9, 1889, application was made to have the town of Casper incorporated. John Merritt made the application in Rawlins, Wyoming since Casper was in Carbon County at that time. On July 8, 1889, Casper was incorporated and George Mitchell was elected as the town's first Mayor.
The first act to separate Natrona county from Carbon County was presented to the Wyoming legislature in 1888. The county was officially organized on April 8 1890. Natrona County derives its name from the mineral, natron, which is carbonate of soda.
The Territory of Wyoming was formed on July 25, 1868, after separating from the Territory of Dakota. In 1869, the first Territorial Legislature passed the first Woman's Suffrage Bill in the Union, thus allowing women in Wyoming the right to vote. Wyoming became a state on July 10, 1890. The word, Wyoming, comes from a Delaware Indian word meaning "Upon the Great Plain.