One hundred years ago, Minnesota’s Bureau of Labor distributed  fliers warning young women not to look for work in “large cities” unless absolutely necessary. Those who decided to risk their safety were urged to write to the bureau ahead of time, so that a “responsible” woman could greet them upon arrival and escort them to their destination. Young men and boys new to the big city were apparently on their own.
 
Minnesota's Bureau of Labor packed lots of useful advice into this little flier. (Image courtesy mnhs.org)