The collection is comprised of correspondence, writings, photographs, and printed material documenting the life and career of American poet Joaquin Miller. Correspondence consists of Miller's outgoing letters; recipients include friends, family, editors, and publishers. Autographs -- one of which is signed on a photograph -- are part of the correspondence. The collection includes correspondence and clippings sent from Joaquin Miller's daughter, Juanita Joaquina Miller, to Laura Stedman. Autograph manuscripts and page proofs of several of Miller's poems can be found in the collection. Drafts of Miller's writings and correspondence with publishers provides insight into his creative process and experience publishing. A printer's copy of Miller's poem "Rough Times in Idaho" is notable because it is written in the hand of author Ina Donna Coolbrith and corrected by author Bret Harte (who published the poem in The Overland Monthly).