Editing Pony Express (section)

===Eastbound===
The first eastbound Pony Express trip left Sacramento on April 3, 1860, and arrived at its destination 10 days later in St. Joseph, Missouri. From St. Joseph, letters were placed in the U.S. mails for delivery to eastern destinations. Only two letters are known to exist from the inaugural eastbound trip.{{sfn|Peters|1996|pp=160–162}}

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|header=First Period Eastbound: April 3, 1860&nbsp;– April 14, 1860
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|image1=First Eastbound Pony Express Apr3 1860.jpg
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|caption1=Letter carried on first eastbound trip
|image2=First Eastbound Pony Express Post-Mark Apr3.jpg
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|caption2=Postmark used on first eastbound cover
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