Statistics for occurrence #1 of “Port Hudson, La.” in chapter 48 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...red Troops April 4, 1864 (which see). Organized June 6, 1863, from 3rd Louisiana Native Guard Infantry. Attached to 1st Division, 19th Army Corps, Dept. of the Gulf, to July, 1863. Port Hudson, La. , to September, 1863. 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864. Assault on Port Hudson, La., June 14, 1863. Surrender of Port Hudson July 9. ...
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