Statistics for occurrence #1 of “Northern Virginia” in chapter 4 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...sylvania, North Anna, Cold Harbor, Weldon, Appomattox. General Griffin commanded the artillery at Malvern Hill, and as leader of the Fifth Corps he received the surrender of the arms of the Army of Northern Virginia at Appomattox. The Maltese Cross on the flag was the badge of his corps. McClellan was called to Washington and placed in command, and immediately, by his great energy, tact, and professional...
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