Statistics for occurrence #1 of “Solomon's Gap” in chapter 127 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 5.:

... under Col. Maulsby, retired by Col. Miles's order to the eastern slope of Maryland Heights, two or three days previous to their evacuation by Col. Ford. On the eleventh of September the force at Solomon's Gap were driven in by the enemy. Col. Ford called upon Col. Miles for reinforcements. The One Hundred and Twenty-sixth New-York and the Thirty-ninth New York (Garibaldi Guards) were sent him on Frida...
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Solomon's Gap (Pennsylvania, United States) 40 20 0 0 0 user votes

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