Bob was certainly into the mystical literature. I’d add to David’s “likely” list Henry Miller, William Burroughs, and Tom Wolfe.
Christine has mentioned reading a lot on tour but I have no idea who or what she’s reading.
It’s safe to say Lindsey read Whitman
But how deeply I’m not sure. He strikes me as incisive and intelligent though nowhere near as curious as Welch.
Stevie read some Celtic lore and historical novels (including a Robert Graves one), but I don’t know how much of a reader she is. Still, I can picture her reading 19th century novels by the Brontes and Dickens...
Beyond Welch, it’s hard to imagine any of the past and present members of the band being deep readers. But who knows? John might have read the entire set of Proust.