Abraham Lincoln Papers – Library of Congress collection of Lincoln correspondence and notes.

Battle and Leaders of the Civil War – Online resource for the 1956 edition provided through Ohio State University. 

Collected Works of Abraham Lincoln – Online resource for the 1953 publication provided through the Abraham Lincoln Association.

Civil War Soldiers and Sailors System – Database containing basic facts about servicemen during the Civil War.  Created by the National Park Service.

Confederate Veteran MagazineDigital archive of the magazine from 1893-1932 from the University of Pennsylvania. 

Essential Civil War CurriculumA large collection of academic essays on a wide variety of Civil War topics from the Virginia Center for Civil War Studies.

Fold3 Civil War Records – Collection of complied service records and other documents for Union and Confederate soldiers (membership required for unlimited access).

Gilder Lehrman Institute of American History – Collection of primary historical documents, essays, and resources for teachers.

Hidden Patterns of the Civil WarFrom the University of Richmond Digital Scholarship Lab, digital media presentations on sectional crisis, slavery, and emancipation during the Civil War era.

Images from the History of Medicine – Vast collection of photographs and art from the U.S. National Library of Medicine.

The Illustrated London News – Digital archive of newspaper content during the American Civil War. 

Mathew Brady Civil War Photographs – National Archives digitization of Brady photographs.

The National TribuneLibrary of Congress digitization of the Union veterans’ newspaper from 1877-1911. 

New York Civil War Newspaper Clipping Files Newspaper source material on 219 New York units that served in the war. 

NOAA Historical Coastal Map and Chart Collection – Coastal survey maps and charts from the Civil War.

Official Records of the Union and Confederate Armies – Formal reports and correspondence of both armies.

Official Records of the Union Confederate Navies– Formal reports and correspondence of both navies.

Pennsylvania Volunteers of the Civil WarDatabase containing a vast array of information on Pennsylvania regiments. 

Richmond Daily Dispatch – Digital archive of newspaper content from 1860-1865. 

Smithsonian Institution Civil War SiteCollection of artifacts and portraits from the Smithsonian and the National Portrait Gallery.

Southern Historical Collection – Vast collection of archival material from the University of North Carolina.

U.S. Army Center of Military History – Collection of materials commemorating U.S. Army operations in the Civil War.

The Valley of the Shadow – Digital collection of archival information from two communities – one North and one South – during the Civil War.

West Point Civil War Maps – From the USMA Department of History, a collection of maps from their campaign atlases.