Other
Pony Express Home Station: Pony Express Route
Use this site to view maps of routes on the Pony Express and also read a brief history.
Curated OER
Vmcsf: When the Pony Express Was in Vogue
The Virtual Museum of the City of San Francisco provides this article from the 1925 San Francisco Newsletter on the Pony Express, the first transcontinental U.S. Mail service.