Statistics for occurrence #1 of “Gettysburg” in chapter 4 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...ceived in the battle of Gettysburg), Lieutenant William H. Johnson (wounded at Gettysburg and mortally wounded at Winchester), and Lieutenant Theodore Atkins, sunstruck during the fierce cannonade at Gettysburg , July 3, 1863, and incapacitated for further service in the army. Private Henry Hiser, in charge of the officers' mess at the time, is leaning against the tent-pole. The first Independent Battery...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Gettysburg (Pennsylvania, United States) 7,452 52 1,368 0 0 user votes
Gettysburg (South Carolina, United States) 0 0 0 0 0 user votes
Gettysburg (South Dakota, United States) 0 0 0 0 0 user votes

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