Statistics for occurrence #1 of “Jackson” in chapter 14, page 252 of Maj. Jed. Hotchkiss, Confederate Military History, a library of Confederate States Military History: Volume 3, Virginia:
...ern or the western valley open, and so each was pursuing his own way up the Valley, Fremont following after Jackson, and Shields following an objective the location of which he did not know, and that Jackson knew he could not reach with his army closed up, through the mud and quicksands of the road leading up the South Fork valley, such as Jackson had encountered on his way to McDowell.
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