Statistics for occurrence #1 of “Pa.” in chapter 34, regiment PA18Cav of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...lly, Va., February 10 and 26, 1863. Scout from Centreville to Falmouth, Va., February 27-28. Left Fairfax C. H. with Stahel's Division to join Army of the Potomac, June 25, 1863. Hanover, Pa. , June 30. Battle of Gettysburg, Pa., July 1-3. Hunterstown July 2. Monterey Gap July 4. Smithburg, Md., July 5. Williamsport July 6. Hagerstown July 6. Boonsboro July 8. ...
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