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.

Prominent family in nineteenth century national politics. Correspondence, speeches and writings, legal files, financial records, historical research files, printed matter, and estate records documenting principally the careers of Francis Preston Blair, journalist and presidential advisor, Frank P. Blair, soldier and politician, and Montgomery Blair, lawyer and cabinet officer.

Lawyer, newspaper editor, and U.S. representative. Correspondence, drafts of newspaper editorials, speeches, committee reports, resolutions, commissions, pamphlets, and newspaper clippings pertaining to Burke's career as a newspaper editor in New Hampshire and as a congressman.

United States naval officer, inventor, and author. Correspondence, letterbooks, journals, reports, logbooks, orders, notebooks, nautical charts and calculations, scrapbooks, and design drawings related to Dahlgren's activities in the development of ordnance for the United States Navy and as chief of the Bureau of Ordnance.

Scientist and historian. Correspondence, family papers, subject files, manuscript and printed copies of speeches, articles, and books, financial papers, and miscellany relating to Draper's scientific work and as a historian and including the papers of his son, Daniel Draper (1841-1931), and other family members.

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.

Naval officer. Correspondence, military records, financial papers, printed material, illustrations, and other papers concerning Goldsborough's career in the United States Navy.

Army officer, editor and United States representative and senator from Connecticut. Correspondence, diaries, notebooks, drafts of speeches, business papers, and memorabilia relating to Hawley's personal and family life and to his business and political work.

Naval officer. Correspondence, logbook abstracts, reports, lists, memoranda, requisition orders, and printed material relating to the naval activities of the Union forces in the Civil War and pertaining chiefly to Lee's service commanding the North Atlantic Blockading Squadron and the Mississippi Squadron.

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

Naval surgeon. Correspondence, speeches, articles, and notes relating mainly to Pinkney's surgical cases in Peru, his observations on the Mexican War and Civil War, his plan to reorganize the Army Medical Corps, and his interest in politics.

United States Navy officer. Journals and a letterbook relating to Rowan's naval service.

Naval officer. Correspondence, letterbook, order book, printed matter, scrapbooks, and unpublished biography detailing Schoonmaker’s naval career. Of particular interest are Schoonmaker’s letters regarding China and the Far East, accounts of the battle of Mobile Bay, and details of his death in Samoa.

Naval officer, explorer, and diplomat. Correspondence, journals, diaries, notebooks, logbooks, subject files, newspaper clippings, and printed matter relating to Shufeldt's career in the navy and as an explorer and diplomat.

Lawyer, United States attorney general, and United States secretary of war. Correspondence, letterbooks, reports, maps, printed material, and memorabilia relating chiefly to Stanton's role as secretary of war under Abraham Lincoln and Andrew Johnson and to his role in the politics of Reconstruction. Other topics include the Civil War, the radical wing of the Republican Party, and Lincoln's assassination.

United States Senator and lawyer. Correspondence with attached and related material chiefly concerning government publications, appointments to office, the Republican Party, Sumner's law practice, and his political speeches and writings.