Melvin Whitson Mills (October 11, 1845 – August 19, 1925) was a member of the New Mexico Territorial Legislature.
He joined his father at the Moreno Mines, Colfax County, New Mexico, and there began and continued the practice of law.
Colfax County, New Mexico, in which spent his later years, had been the seat of many internal insurrections, and hundreds of people had been hung, shot, and killed in various ways over local difficulties.
The law could not be enforced at times; the courts could not be held since the civil authorities where often at the mercy of the outlaws and worst types of desperados.
Melvin Mills owned a large ranch in Springer, New Mexico, while a cattle owner and was in control of one of the largest mercantile and banking company at the time.