Can you give me any websites with primary source documents about the western frontier?

Answer 1

Library of Congress maintains an online exhibit for such things.


I'd start there:

http://memory.loc.gov

Next i'd try the National Archives and Records Administration, the site is a bit tricky to navigate though, but heres a place to start:

http://www.archives.gov/research/arc/topics/historical-documents-online.html

Answer 2

A google search using the expression threw up nearly I million sites. This one seems worth a look:- http://lib.colostate.edu/research/history/primarysources.html