The Divorce Colony

For a woman traveling without her husband in the late nineteenth century, there was only one reason to take the train all the way to Sioux Falls, South Dakota, one sure to garner disapproval from fellow passengers. On the American frontier, the new state offered a tempting freedom often difficult to obtain elsewhere: divorce.

With the laxest divorce laws in the country, five railroad lines, and the finest hotel for hundreds of miles, the small city became the unexpected headquarters for unhappy spouses—infamous around the world as The Divorce Colony. These society divorcees put Sioux Falls...