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

...une 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. At Martinsburg, W. Va. , August 4, 1863, to April 29, 1864. Skirmish at Hedgesville October 16, 1863 (Detachment). Sigel's Expedition from Martinsburg to New Market April 29-May 16, 1864. Battle of New Market Ma...
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