Utah
The Mormon issue made the Utah situation unique. In 1870 the Utah Territory, controlled by Mormons, gave women the right to vote. However, in 1887, Congress disenfranchised Utah women with the Edmunds–Tucker Act, which was designed to weaken the Mormons politically and punish them for polygamy. In 1867–96, activists promoted woman suffrage in Utah as an experiment, and as a way to eliminate polygamy. They were Presbyterians and other Protestants convinced that Mormonism was a non-Christian cult that grossly mistreated women. The Mormons promoted woman suffrage to counter the negative image of downtrodden Mormon women. The LDS Church officially ended its endorsement of polygamy in 1890 and in 1895 Utah adopted a constitution restoring the right of woman suffrage. Congress admitted Utah as a state with that constitution in 1896.
Read more about this topic: Women's Suffrage In The United States, Woman Suffrage in Individual States, West