Statistics for occurrence #1 of “Harper's Ferry, W. Va.” in chapter 32, regiment OH116 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...April 20-29. Scout toward Wardensville and Strasburg April 20. Scout to Strasburg April 25-29. Bunker Hill June 13 (Cos. A and I ). Battle of Winchester June 13-15. Retreat to Harper's Ferry, W. Va. , June 15-16; thence to Washington, D. C., July 1-4, and join Army of the Potomac at Frederick, Md., July 5. Pursuit of Lee to Manassas Gap, Va., July 5-24. Wapping Heights, Va., July 23. ...
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