Statistics for occurrence #1 of “Northern Virginia” in chapter 4 of General Joseph E. Johnston, Narrative of Military Operations During the Civil War:

...it was ascertained, about the 5th of April, that the Federal army was marching from Fort Monroe toward Yorktown, D. H. Hill's, D. R. Jones's, and Early's divisions, were transferred from the Army of Northern Virginia to that of the Peninsula. The former was thus reduced to four divisions: Jackson's at Mount Jackson, Ewell's on the Rappahannock, Longstreet's at Orange Court-House, and G. W. Smith's at Fredericks...
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