Statistics for occurrence #1 of “Captain Mack” in chapter 1.4 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War. Volume 3.:

...light. If you have got your troops into a position which you deem advantageous it will not be advisable to make a change for the purpose of complying with the general's instructions for you sent by Captain Mack . It may be as well to halt the division ordered to the center and let it wait where it is for further orders. The general desires to see you in person as soon to-night as your duties will permit ...
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