Jim Harrison's links:{Not his pantheonic list, but culled from a book of interviews, the male group would be longer and deeper surely, and both more widely drawn.}

women writing:
Levertov, Didion, Oates, Wakoski, Renata Adler, Alison Lurie, Toni Morrisson, Silko, Ellen Gilchrist, Anne Tyler, Adrienne Rich, Rebecca Newth, Rosellen Brown, Gretel Erlich, Annie Dillard, Susan Sontag, Margaret Atwood, Louise Erdrich, Mary Douglas, Isaak Dinesen,

men:
Dan Gerber, Fred Turner, James Crumley, Doug Peacock, Rene Char, Philip Caputo, Matthiessen, McGuane, Guy De La Valene, Rimbaud, Dosteyevsky, Yeats, Lorca, Lorca, Lorca, Lorca, Lorca, Lorca, Lorca