Tough Tarbell Trivia

[L Verge]

I doubt this will be very difficult. Of course Tarbell wrote several articles about Lincoln, but she also did many more non-Lincoln articles. What two states did she write about?

Best
Rob

I know absolutely nothing about Ms. Tarbell except that she was a muckraker journalist. One of the biggest mucks in the U.S. during her period was the City of Chicago, so I'll guess that Illinois was one of her targets?