Lawyer, advisor to the Department of State, and international arbitrator. Correspondence, diaries, informal records and notes of negotiations, typewritten and printed documents, and notes for articles and editorials relating mainly to Anderson's work as a specialist in international affairs and international negotiator.

Clergyman and missionary. Correspondence, diaries, sermon notes, speeches and articles, reports, memoranda, family and personal correspondence, obituaries, Bibles, printed matter, memorabilia, scrapbooks, and photographs documenting Brent's career as a clergyman and missionary.

Physicist, engineer, government official, and science administrator. The collection relates primarily to Vannevar Bush's role as coordinator of the scientific community for defense efforts during and after World War II when he served as chairman of the National Defense Research Committee and director of its successor, the Office of Scientific Research and Development, where he supervised the Manhattan Project and other programs.

Lawyer, author, and diplomat. Correspondence, letterbooks, addresses, lectures, legal memoranda, memorabilia, scrapbooks, printed matter, and other papers relating primarily to Choate's student days at Harvard University, his law practice in New York, his charitable work, and his diplomatic career.

Public official and presidential secretary. Correspondence, letterbooks, diaries, memoranda, subject files, printed matter, and miscellany relating to Cortelyou's duties as secretary to William McKinley and Theodore Roosevelt, his service as secretary of commerce and labor, postmaster general, and secretary of the treasury, and his work as chairman of the Republican National Committee.

Naval officer. Correspondence, letterbooks, diaries, journal, military papers, financial papers, scrapbooks, and photographs chiefly relating to Dewey's activities as naval commander in the Far East during the Spanish-American War, especially at the battle of Manila Bay; as admiral and president of the General Board of the Navy ; president of the court of inquiry concerning Winfield Scott Schley; and commander-in-chief of naval winter maneuvers.

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.

Architect. Correspondence, diaries, biographical material, financial papers, speeches, articles, poems, and memorabilia relating to Gilbert's family and his work as an architect. Includes letters addressed to Thomas Jefferson by William Thornton and typescript of a letter to Jefferson from James R. Dermott.

Author, diplomat, lawyer, politician, and soldier. Diaries, family and general correspondence, memoranda, speeches, newspaper clippings, and miscellaneous personal and official items relating to Griscom’s career as a diplomat between 1901 and 1909 and military service during World War I.

Lawyer. Correspondence, diaries, financial papers, speeches, writings, and printed materials documenting Hay's career as a prosecuting attorney in Indiana, temporary secretary to Benjamin Harrison, U.S. district attorney in Minnesota, U.S. general appraiser, and Republican Party member.

Naval officer and chaplain. Correspondence, notebooks, ship records, clippings, and printed matter relating chiefly to the Spanish-American War and its aftermath.

Naval officer and electronics consultant. Correspondence, diaries, speeches, articles, transcripts of audio recordings, research notes, notebooks, financial and legal papers, bibliographical file, and newspaper clippings relating to Hooper's role in the planning and development of radio communications in government service.

Governor of New York, secretary of state, and chief justice of the United States. Family papers, correspondence, speeches and biographical writings, subject files, notes, scrapbooks, clippings, and other printed and miscellaneous matter relating principally to Hughes's political and judicial career and his service on various international bodies and commissions.

Diplomat, poet, and author. Diaries, correspondence, subject and writings files, and scrapbooks relating to Keene's career in the consular service and to his writings.

U.S. secretary of state, U.S. senator from Pennsylvania, and lawyer. Correspondence, memoranda, speeches, writings, reports, articles, notebooks, bills and resolutions, legal records, biographical sketches, library catalog, clippings, printed matter, scrapbooks, cartoons, and other papers relating chiefly to Knox's service as U.S. attorney general, secretary of state, and senator from Pennsylvania.

Associate justice of the United States Supreme Court. Correspondence and telegrams, some written while Lurton was attending the University of Chicago (1857-1886) and while he was a prisoner in Camp Chase, Ohio, and at Johnson Island Prison during the Civil War.

Correspondence, scrapbooks, journals, diaries, photographs, memorabilia, printed materials, and other papers relating to the Ohio family of "Fighting McCooks" that became prominent through the service of fifteen of its sons in the Civil War. The McCooks were active in legal and military affairs and in national and state politics in Ohio and New York. The larger part of the collection concerns the military and political career of Anson G. McCook (1835-1917).

United States president, representative, and army officer, and governor of Ohio. Correspondence, speeches, will, messages, scrapbooks, printed matter, and other papers pertaining primarily to McKinley's presidential administration.