US National Archives
Nara: Charters of Freedom: The Civil War: Union Sealed in Blood
Website on U.S. History uses primary document material to explain the importance of the Battle of Antietam and the high stakes of the Civil War.
University of North Carolina
Documenting the American South: John Hill Hewitt, "War"
This gives the history of the Civil War from its beginning to the Battle of Richmond in poetic verse written by John Hill Hewitt (1801-1890 CE). The introduction firmly establishes the sourthern sympathies of the writer.
Curated OER
National Park Service: Kennesaw Mountain: History and Culture
A site from the National Park Service that provides limited information on the Kennesaw Mountain Civil War battle.
PBS
Pbs Learning Media: Primary Source Set: Battle of Gettysburg
This collection uses primary sources to explore the Battle of Gettysburg during the American Civil War.
Library of Congress
Loc: History of the 105th Pennsylvania Volunteers
The Library of Congress gives the history of the 105th Regiment of Pennsylvania Volunteers in a timeline form. Based on "History of the One Hundred and Fifth Regiment of Pennsylvania Volunteers" by Kate M. Scott. Part of Tilton C....
US National Archives
Nara: American Originals: 54th Regiment Casualty List
An interesting webpage in that it contains a brief summary of the history of the Regiment as well as the Casualty List from the assault on Fort Wagner and two historic photos.