Catherine Mary "Kate" Hewitt made a fateful promise to Maj. Gen. John Reynolds before the battle of Gettysburg. Reynolds was killed and Kate's life was changed. (Left, courtesy of the Archives and Special Collections, Franklin and Marshall College, Lancaster, Pa. Right, National Portrait Gallery)

Catherine Mary “Kate” Hewitt made a fateful promise to Maj. Gen. John Reynolds before the battle of Gettysburg. Reynolds was killed and Kate’s life was changed. (Left, courtesy of the Archives and Special Collections, Franklin and Marshall College, Lancaster, Pa. Right, National Portrait Gallery)