Gettysburg: A Novel of the Civil War
The story takes place in 1863 when Robert E. Lee and the Army of Northern Virginia are victorious at the Battle of Gettysburg instead of the United States. (Instead of attacking the Union line on July 2, 1863, Lee conducts a broad turning movement and forces the Army of the Potomac to attack him in a favorable position.) Gettysburg becomes something of a footnote in the main battle, which takes place at Union Mills in Maryland. The defeat at Union Mills is a grave setback to the United States, but it by no means spells the end of the war or determines its outcome, and the United States still has a lot of fight in it.
Samuel C. Armstrong
After being paroled in a prisoner exchange, Capt. Armstrong returned to the front lines in Virginia in December. The following summer, as part of the 3rd Division of the II Corps under Alexander Hays Armstrong fought at the Battle of Gettysburg in July 1863, defending Cemetery Ridge against Pickett's Charge. Armstrong subsequently received a promotion to Major on August 26, 1863 (but effective July 3, 1863, the first day of the Battle of Gettysburg).