Financier and philanthropist. Correspondence, letterpress books, financial papers, newspaper clippings, printed matter, and other papers relating primarily to Corcoran's business and banking interests and philanthropic efforts.

Banker and public official. Correspondence chiefly documenting Gage's service as secretary of the treasury in the William McKinley and Theodore Roosevelt administrations and subsequently as president of the United States Trust Company of New York.

Correspondence, speeches and writings, financial papers, newspaper clippings and miscellany of various members of the Montgomery family, especially Giles Foster Montgomery (1835-1888) and Emily Redington Montgomery (1839-1898). Includes papers of allied Peck and Perkins families relating to the experiences of members in the Civil War.