Statistics for occurrence #1 of “Colonel Duncan” in page 1051 of Benjamnin F. Butler, Butler's Book: Autobiography and Personal Reminiscences of Major-General Benjamin Butler:

... with Hunt's and Belger's light batteries. The infantry, consisting of three white regiments, brigaded under Col. R. M. West, First Pennsylvania Light Artillery, and three colored regiments under Colonel Duncan , Fourth U. S. Colored Troops, moved thence at 9 A. M. on the 6th, carrying on the person six days rations in the knapsack and seventy rounds of cartridges--forty in the boxes and thirty in the knapsa...
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