When I was writing my Silas Weir Mitchell chapter, I happened across Jim Zwick's comprehensive website on Twain and anti-imperialism. So it should come as no surprise that when I started writing my Twain chapter, I sought out the two books Zwick had written on Clemens and anti-imperialism. He and I exchanged a few emails and he was aggressively generous, sending me copies of a numerous documents I was having trouble laying hands on.
Tonight I read Shelley Fisher Fishkin's email to the Americanist listserv informing us that he had passed away. I never met him, and I only exchanged a handful of emails with him, but let me say this:
He was generous when he didn't have to be.
It may sound banal, but when you think about it, what better epitaph could a scholar wish for?