The Louis Untermeyer papers consist of five linear feet of manuscript material abandoned by Untermeyer when he sold his Adirondack home, Stony Water, around 1970. Dating from 1902 through 1972, with the bulk of the papers dating 1912–1935, the collection is composed of correspondence, proofs, lists, scrapbooks, notes, photographs, programs, announcements, lectures, anthologies, poems, reviews, essays, and a bookplate.