The Roger Hayward papers are comprised primarily of sketch books dating from 1910 to the late 1970s, and correspondence related to the various projects with which Hayward was involved. Of particular note are materials describing a series of inventions that Hayward proposed over the course of his life, a biographical scrapbook compiled by the Hayward family, and collections of materials documenting Hayward's work with a number of renowned scientists, including Linus Pauling. Hayward collaborated extensively with Pauling as illustrator of many of Pauling's books and journal publications.