"Confederate General Alfred Mouton ordered the Confederate forces stationed in Louisiana to take for Butler. He considered this maneuver essential to the disrupted (missing word) of communication between Union General Banks and New Orleans. Mouton issued the following General Order on May 31, 1863:
The Fourth, Fifth, and Seventh Regiments Texas Mounted Volunteers, the Second Regiment Louisiana Calvary, Waller’s Battalion, the Valverde Battery and Nichol’s Battery will constitute the First Brigade…under the command of General Thomas Green Baylor’s Regiment, Stone’s Regiment, Gurley’s Regiment (30th Texas Partisan Rangers), Philip’s Regiment, Speight’s Battery, and Semmes Battery will constitute the Second Brigade…General J.P. Majors is assigned…command of the same.
The Texas and Arizonans marched all night on June 26, 1863, to Donaldsonville. When they were within nine miles of the town, they rested while preparing for the battle. The Texas Calvary, commanded by General Green, stormed the fort during the early hours of June 28."
- and in the process, I found Great Grandpa's Battalion...
I tried to cut and paste the URL, but for some reason it didn't work. If it doesn't work for you, just key in the fist part of it (ie, civilwarstories.com) and see if it comes up. Maybe you can find the actual order by using the date and pertinents if it's the right one. If not, let me know and we'll try again..