The University of Chicago Press operates a book site - BiblioVault - for scholarly books. It's self-description includes:
"The BiblioVault repository serves 60 scholarly presses and contains digital files for more than 14,000 books.
Most books published over the past few years exist as electronic files originally used to print the hard copy. Older books that exist only in hard copy can be scanned to create electronic files. Publishers can deposit both types of files in BiblioVault."
A search for the subject of "Texas" brought 196 books.
The typical information is represented by
"We're the Light Crust Doughboys from Burrus Mill": an oral history
You have the option of buying through the system.
Read more at http://www.bibliovault.org/