Statistics for occurrence #1 of “Gettysburg” in entry anderson-richard-herron of Harper's Encyclopedia of United States History:

...int in 1842. He served in the war with Mexico; and in March, 1861, he left the army and became a brigadier-general in the Confederate service. He was wounded at Antietam; commanded a division at Gettysburg ; and was made lieutenant-general in 1864. He died in Beaufort, S. C., June 26, 1879.
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Gettysburg (Pennsylvania, United States) 7,452 224 1,368 10 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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