I'm currently writing a Trail of Cthulhu campaign, in which Investigators travel across the United States in the 1930s. To get inspiration for the scenarios, I read books and watch movies about particular locations.
For this campaign, I'm particularly interested in the following places: Savannah, New Orleans, Las Vegas, The Grand Canyon, Las Vegas/The Hoover Dam and San Francisco. I've got some source material on the first two, but I need stuff for the final four, especially San Francisco.
Alternatively, if you have a good alternative location, tell me it. For example, if Memphis is particularly interesting in the 1930s, give me some source material on that.
Most of all, I want material with interesting things I can use in scenarios. For example, I'm currently reading a book about jazz in New Orleans ("Hear Me Talking To Ya". Similarly, there's an excellent documentary series, Jazz, by Ken Burns. That's a scenario right there: I can write it around jazz clubs and musicians.
So far, I've read Flannery O'Connor (for Savannah), William Faulkner (for Mississippi), the jazz book mentioned above and a bit of John Steinbeck. What else can I read and watch?