Arthur Calvin Mellette was the tenth and last Governor of the Dakota Territory and the first Governor of the State of South Dakota. He is the namesake of Mellette, South Dakota.

Mellette was elected as district attorney for Delaware County, Indiana. In 1870, Mellette purchased the Muncie Times, a newspaper which became influential and prosperous under his tutelage. During that same year, Mellette was elected the county superintendent of schools.

When his wife became ill, Mellette visited western states to find a climate that would be more beneficial to her. Mellette’s family eventually settled in Springfield, Dakota Territory, for two years; and, Mellette served as register of the United States Land Office in Springfield until the land office was moved to Watertown, Dakota Territory, in 1880.

In October 1885, the Republicans nominated Mellette for governor of Dakota Territory. In November 1885, Mellette ran unopposed for the office of governor; and, voters selected Huron as the temporary capitol of Dakota Territory. In 1889, voters approved the new constitution for South Dakota and elected Arthur C. Mellette as South Dakota’s first Governor. On November 2, 1889, President Benjamin Harrison signed the proclamation to make South Dakota the fortieth state. Mellette County, South Dakota is named in his honor.