Domestic U.S. Military Facilities
of the First World War (1917-1919)
A Postal History
by Robert Swanson
This is one of those "partial" books that are posted on-line in anticipation that interested parties will be enticed to purchase a hard copy of the complete work.
Of the material posted, this is a fascinating read on the various US facilities and postmarks used during World War I throughout the United States, so I thought I'd share the link for any World War I Postal Historians on SCF:
http://books.google.com/books?id=sS...ge&q&f=false