Textual References:

Drouet, works as a travelling salesman for the fictional dry goods firm Bartlett, Caryoe & Company. He visits Omaha, Nebraska on a business trip (Chapter XI).
He also visits:
St Pauls, Minnesota
La Crosse, Wisconsin
New York City

More About:

Insert map of Nebraska here.
Connections betwen places Drouet visits?

Further Reading: