Statistics for occurrence #1 of “Lieut. Woodruffs” in chapter 35 of Elias Nason, McClellan's Own Story: the war for the union, the soldiers who fought it, the civilians who directed it, and his relations to them.:

...e to send this corps to the assistance of the right wing. On nearing the field, hearing that one of our batteries 4th U. S. Artillery commanded by Lieut. Thomas, who occupied the same position as Lieut. Woodruffs battery in the morning — was hotly engaged without supports, Gen. Smith sent two regiments to its relief from Gen. Hancock's brigade. On inspecting the ground Gen. Smith ordered the other...
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