Gettysburg Reunion Army Maj. Gen. Daniel E. Sickles, a veteran of the 70th New York Infantry Regiment and U.S. Volunteers Infantry Regiment during the Civil War, sits in a car at the 1913 Battle of Gettysburg reunion. SHARE: Download: Full Size (0.14 MB) Credit: Library of Congress VIRIN: 220714-O-D0439-032.JPG Photo Gallery