I just learned about the death of Jules Tygiel, the San Francisco State historian.
I interviewed Jules about Carey McWilliams, whose work he taught and understood very well. I also had the good fortune to meet him at a series of SF State lectures devoted to California politics. Jules's work, which focuses on California and baseball, is first-rate.
Here's an article from the Los Angeles Times on him and his work. Jules was only 59.