Who is Rebel Smith from Richard Brautigan's Trout Fishing in America ; the Pill Versus the Springhill Mine Disaster ; and, in Watermelon Sugar and what is their importance?

Rebel Smith appears in the story, The Cabinet of Doctor Caligari. Rebel is a described as "a middle-aged woman who was a real Okie" who wore "a pair of goofy overalls." Smith is employed as a field boss for farm laborers (cherry pickers) in the Pacific Northwest.