Correspondence, memoirs, diaries, writings, photographs, legal and financial records, genealogical material, military records, printed matter, and mementos primarily documenting the professional and family activities of Henry L. Abbot and his family during the Civil War.

United States representative, governor of Massachusetts, and army officer. Family and general correspondence, diaries and notebooks, letterbooks, military papers, speeches and writings, scrapbooks, clippings, printed matter, and miscellany relating chiefly to Banks’s political career and as an army officer during the Civil War.

Union Army officer, educator, and governor of Maine. Correspondence, biographical notes, record books, military reports, speeches, accounts of engagements of the Army of the Potomac, and other material mostly concerning the Civil War.

Farmer, lawyer, and statesman. Correspondence, legal papers, memoirs including a memoir of Clayton by Robert Montgomery Bird, and newspaper clippings pertaining chiefly to Clayton’s service as United States secretary of state (1849-1850).

Lawyer, Ohio governor, U.S. representative and senator, and U.S. secretary of the treasury. Correspondence received during Corwin's tenure as secretary of the treasury. Subjects include appointments to and removals from office, Whig politics, and financial and commercial policies of Millard Fillmore's administration.

United States cabinet official and representative from Massachusetts, army officer, diplomat, and lawyer. Correspondence, memoranda, diaries, journals, writings, speeches, notes, notebooks, legal file, business papers, biographical material, newspaper clippings, printed material, maps, photographs, and other papers reflecting Cushing's role in national and international affairs of the mid-nineteenth century.

Actress. Correspondence; biographical and genealogical material; annotated scripts and texts of plays, poetry, and readings; newspaper clippings; reviews; and souvenir programs relating chiefly to Cushman's career in the theater.

United States senator and jurist. Correspondence, speeches, newspaper clippings, and miscellaneous material relating mostly to Doolittle's Senate career and touching on the issues of the Civil War and Reconstruction.

Engineer and inventor. Correspondence, writings, design specifications, articles, memoranda, technical notes, financial and legal papers, drawings, printed matter, and miscellany relating primarily to Ericsson's activities in marine engineering, especially his work on screw propellers and his design of the steamship Princeton and the ironclad Monitor. Includes correspondence of Ericsson's biographer, William C. Church.

Lawyer, United States senator from New York, and United States secretary of state and attorney general. Correspondence, diary, journal, account books, minute book, printed material, drafts of memoranda, and a journal of college reading relating mainly to New York state, national, and international politics from the Civil War to the 1890s.

Congressman, senator, governor, and secretary of state. Correspondence, journals, diaries, subject files, scrapbooks, printed matter, and other papers relating chiefly to Fish's service as secretary of state under Ulysses S. Grant, as a member of Congress, and governor of New York.

U. S. president, vice president, senator, representative, and army officer. Correspondence, memoranda, diaries, messages and speeches, courts-martial and amnesty records, financial records, lists, newspaper clippings, printed matter, scrapbooks, photographs, and other papers relating chiefly to Johnson's presidency.

Jurist and legal commentator. Correspondence, including family letters, journals of official and personal travels, diplomas, and commissions pertaining primarily to Kent's service as judge of the New York supreme court and as chancellor of the New York court of chancery.

United States president and representative and lawyer from Illinois. Correspondence and other papers relating primarily to Abraham Lincoln's presidency and the Civil War.

Jurist and U.S. senator and representative from North Carolina. Correspondence, memoranda, diaries, speeches, legal papers, genealogical material, financial papers, and printed matter concerning local, southern, and national politics, the Whig Party in the South, economic and social conditions in North Carolina, the Mangum plantation, and education of the Mangum children.

U.S. representative from Ohio, U.S. postmaster general, associate justice of the U.S. Supreme Court, and Ohio Supreme Court associate justice. Correspondence, financial data, docket book, printed matter, a file of reports, opinions and briefs arranged by case name, and other papers relating to McLean’s service as postmaster general and Supreme Court justice.

Army officer, engineer, architect, and scientist. Correspondence, diaries and journals, notebooks, family papers, military papers, drawings and plans, scrapbooks, and other papers relating primarily to Meigs's work in the United States Army Corps of Engineers, his service as quartermaster general during the Civil War, and family matters.

Diplomat. Correspondence, family papers, diaries (1928-1930), speeches, notes and book drafts, other writings, memoranda, subject files, legal and financial papers, biographical material, academic notebooks, scrapbooks, and other papers documenting Patterson's career as a diplomat and foreign service officer serving at American embassies in China, Colombia, Egypt, Germany, Norway, Peru, Poland, and Turkey, and as ambassador to Uruguay.

Naval officers and authors. Papers of David Porter (1780-1843) and his son, David Dixon Porter (1813-1891) relating to their naval careers and families.

Merchant and banking family of New York, New York, Philadelphia, Pennsylvania, and Washington, D.C. Family and business correspondence, diaries, account books, writings, financial records, biographical and genealogical papers, printed materials, and other papers of Riggs family members.