In July 2011 Claremont signed a deed of gift to Columbia University's Rare Book & Manuscript Library, donating his archives of all his major writing projects over the previous 40 years to the Library's nascent comics archives collection, forming the foundation of a research collection focusing on New York City-based cartoonists and comics writers. Following the examination and processing of the materials, which include notebooks, correspondence, early story drafts, plays, novels, comic books and materials from Claremont's early training in the theater and his career as an actor, Claremont's archive will be housed at the Rare Book & Manuscript Library in Butler Library, separate from the graphic novels collection, and will be open to anyone who demonstrates a need for its use, with a Finding Aid being made available online. Claremont's longtime editor Louise Simonson said, "his papers will provide many clues, not only to the evolving way comic books are created and presented, but also how they are perceived, licensed, bought and sold in America and around the world."