What is the connection between 'The Wizard of Oz' and Aberdeen South Dakota?

That the author may have been working out details of the book there is the connection between Aberdeen, South Dakota and "The Wizard of Oz."

Specifically, author and Oz series originator Lyman Frank Baum (May 15, 1856 - May 6, 1919) was an unsuccessful businessman and newspaper editor in Aberdeen between 1888 and 1891. He may have been collecting information for the successful children's story that the George M. Hill Company published on May 17, 1900. For example, the writer's experiences in the drought-stricken Dakota Territory helped him describe the book's critical opening and closing sequences in Kansas.