Verehrte Freunde,
vielleicht sind ja diese Links nützlich:
Table of Post Offices in the United States with their Distances from Washington City (1811)
http://books.google.de/books?id=6v8CA…0States&f=false
Post-Office Laws, Instructions and Forms, Published for the Regulation of Post Offices (1828)
http://books.google.de/books?id=kKcwA…0States&f=false
Table of the Post Offices in the United States arranged by States and Counties (1831)
http://books.google.de/books?id=OE4ZA…0States&f=false
Table of the Post Offices in the United States on the First Day of October, 1846
http://books.google.de/books?id=7MQpA…0States&f=false
Eli Bowen: The United States Post-Office-Guide (1851)
http://books.google.de/books?id=mXMFA…0States&f=false
D.D.T. Leech, List of Post Offices in the United States with the Names of Postmasters on the 1st of July, 1855
http://books.google.de/books?id=UCo0A…0States&f=false
D.D.T Leech, Post Office Directory or, Business Man’s Guide to the Post Offices in the United States ... Containing also a Comprehensive Codification of the Existing Postal Laws (1856)
http://books.google.de/books?id=zU4ZA…0States&f=false
Post Office Directory. List of Post Offices in the United States (1870)
http://books.google.de/books?id=2R2uI…VObZZgC&f=false
Viele Grüße aus Erding!