AMDOCS: Documents for the Study of American History
Abraham Lincoln Papers
Abraham Lincoln:  Speeches and Writings
Adams Family Papers
African-American Women Writers of the Nineteenth Century
African-Americans and the End of Slavery inMassachusetts
Afro-Louisiana History and Genealogy, 1719-1820
The American Civil War
The American Colonist’s Library
American Journeys:  Eyewitness Accounts of Early American Exploration and Settlement
American Memory:  Library of Congress
American Notes: Travel in America, 1750-1920
The American Presidency Project
The American Revolution and Its Era:  Maps and Charts of North America and the West Indies, 1750-1789
American Rhetoric
American Slave Narratives
Archives of Maryland Online
The Atlantic Slave Trade and Slave Life in the Americas:  A Visual Record
The Avalon Project at Yale Law School: Documents in Law, History and Diplomacy
James Buchanan Resource Center
Caleb Johnson’s Mayflower History
A Century of Lawmaking for a New Nation:  U. S. Congressional Documents and Debates, 1774-1875
A Chronology of US Historical Documents
Civil War Documents
Civil War Information Civil War Women
Clara Barton Papers
Confederate Broadsides
Connecticut Public Records, 1636-1776
The Crisis of the Union:  An Electronic Archive about the Causes, Conduct, and Consequences of the US Civil War
The Diaries of John Quincy Adams
Digital Library on American Slavery
Digitized Primary Sources in American History
Documenting the American South
Early Virginia Religious Petitions
Jonathan Edwards:  Works Online
Federalist Papers
The First American West:  The Ohio River Valley:  1750-1820
The Founders Constitution
The Fourteenth Amendment
Frederick Douglass Papers
From Revolution to Reconstruction:  Documents
From Slavery to Freedom:  The African-American Pamphlet Collection, 1822-1909
George Washington Papers
Gerrit Smith Broadside and Pamphlet Connection Gilder Lehrman Collection
Hanover Historical Texts Project: United States
General A.P. Hill: Life and Career
Historical Maps of the United States
Historical Pictures Collection
Immigration to the United States:  1789-1930
Thomas Jefferson Papers
The Journals of Lewis and Clark
James Madison Papers
Making of America
New-York Historical Society Manuscripts on Slavery
Online Manuscript Resources in Southern Women’s History
The Papers of Benjamin Franklin
The Papers of John Jay
Pennsylvania Constitution
Plymouth Colony Archive Project
Primary Documents in American History
RealClear’s American Civics Portal
Religion and the Founding of the American Republic
The Robert E. Lee Papers
The Salem Witch Trials
The Samuel J. May Anti-Slavery Collection
Slavery and Abolition in the US:  Select Publications of the 1800s
Slaves and the Courts
Supreme Court Collection
Teaching American History
The Valley of the Shadow: Two Communities in the American Civil War
United States Military History
Voyages:  The Trans-Atlantic Slave Trade Database