The Denver Post Photo Blog  has an amazing set of photos - Captured: America in Color from 1939-1943  - from the Prints and Photographs Division  of the Library of Congress. They are reproductions from color slides taken by the US Farm Security Administration  from 1939-1943. The photos are from all over the country, including some from Texas, Louisiana, Oklahoma, and New Mexico. I think my favorite photo from the set is a real life "Rosie the Riviter ," I love how her face is mirrored in the side of the "Vengeance" dive bomber.
via Boing Boing