:Lawyers, senators, and diplomats, of the Bayard (Baird) family of Delaware. Correspondence, diaries, financial and legal papers, printed matter and miscellaneous material relating to the careers of James A. Bayard and his son Richard H. Bayard.

Diplomat, lawyer, and author. Correspondence, diaries, drafts of articles, books, and speeches, printed matter, and scrapbooks relating to Davies's career as an ambassador to Belgium and Russia, presidential advisor, and author.

Diplomat. Correspondence, diary, letterbook, speeches and articles, scrapbook, clippings, memorabilia, photographs, and other papers documenting Fletcher's career from his enlistment in the Rough Riders during the Spanish-American War through his service as a special adviser to the secretary of state on post-World War II problems and plans.

Correspondence, business records, financial records, legal documents, speeches, reports, essays, memoranda, and other papers of members of the Galloway, Maxcy (Maxey), and Markoe families relating to economic conditions in Maryland and foreign affairs and political events in the 1840s and 1850s.

Diplomat, publicist, civic leader, and peace advocate. Scrapbooks and correspondence relating to Marburg's civic activities in Baltimore, Maryland, his belief in internationalism and advocacy for peace before and after World War I, his role as United States minister to Belgium from 1912 to 1914, and his work as an art collector and public art advocate.

Author, lawyer, diplomat, and mayor of Toledo, Ohio. Correspondence, journals, diaries, speeches and writings, biographical material, scrapbooks, photographs, printed matter, clippings, financial records, and memorabilia relating to Whitlock's career as a writer, diplomat, and politician, and his interest in municipal administration.