Archibald MacLeish was an American poet and writer, who was associated with the modernist school of poetry. MacLeish studied English at Yale University and law at Harvard University. He enlisted in and saw action during the First World War and lived in Paris in the 1920s. On returning to the United States, he contributed to Henry Luce's magazine Fortune from 1929 to 1938. For five years, MacLeish was the ninth Librarian of Congress, a post he accepted at the urging of President Franklin D. Roosevelt. From 1949 to 1962, he was Boylston Professor of Rhetoric and Oratory at Harvard. He was awarded three Pulitzer Prizes for his work.

The librarian of Congress is the head of the Library of Congress, appointed by the president of the United States with the advice and consent of the United States Senate, for a term of ten years. The librarian of Congress also appoints and oversees the Register of Copyrights of the U.S. Copyright Office and has broad responsibilities around copyright, extending to electronic resources and fair use provisions outlined in the Digital Millennium Copyright Act. The librarian determines whether particular works are subject to DMCA prohibitions regarding technological access protection. In addition, the librarian appoints the U.S. poet laureate and awards the Gershwin Prize for Popular Song.