On August 1, 1936, Clement Lincoln Bouvé was appointed the third Register of Copyrights. Bouvé, who served from 1936 to 1943, was the first lawyer to serve as Register. Among the many notable accomplishments of his tenure was the creation of the copyright card catalog, 1938-1945, the first U.S. Copyright Office catalog to combine into one alphabet all of the entries representing all authors, claimants, and titles for all classes of registered works. From the History of Copyright Timeline at the U.S. Copyright Office.