Statistics for occurrence #1 of “Gettysburg” in chapter 8, section c.8.2, page 36 of Southern Historical Society Papers, Volume 4.:
...t was, that Confederate regiments, which had seen any length of service, were not, as a usual thing, equal in strength to Federal ones; and hence it is that the above calculation of Lee's strength at Gettysburg is from 5,000 to 7,000 in excess of the
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