Gettysburg Living History portrayals performed by The Confederation of Union Generals with "Maj. Gen. Daniel Sickles," portrayed by John Griffiths
Year of Desperate Struggle: J.E.B. Stuart and His Cavalry, from Gettysburg to Yellow Tavern, 1863-1864 - PA Books
Barksdale's Assault: Civil War Institute
Treasures From The National Archives, Civil War Institute