Author, historian, and newspaper editor. Correspondence, memoranda, writings and speeches, research notes, and other papers reflecting Brant's career with various newspapers, in the administration of Franklin D. Roosevelt, as a playwright, and his interest in James Madison.

Journalist, playwright, magazine editor, United States representative from Connecticut, and United States ambassador to Italy. Family papers, correspondence, literary files, congressional and ambassadorial files, speech files, scrapbooks, and other papers documenting Luce's personal and public life as a journalist, playwright, politician, member of Congress, ambassador, and government official.