Apart from the one company of Tigers and Coppen's Battalion there were several other zouave units from Louisiana. Six of the companies of the 13th La were formerly the Governor's Guard and wore a dark blue jacket trimmed with gilt lace, red zouave pants, and a red fez. This uniform was still in use at Shiloh according to a Federal description.
As well, Dupiere's Battalion, also known as the 2nd Louisiana Zouaves, went into Confederate service in April 1862. It was first planned to send the battalion to Virginia to reinforce Coppen's Zouave Battalion. This never happened and instead the battalion remained in the west. It was at the Battle of Corinth and was subsequently part of Waul's Texas Legion during the Vicksburg campaign.
Confederate uniform researcher Lee White described these zouaves as wearing flowing red pantaloons and short gray jackets as late as 1863.
Some evidence also exists for another ANV Confederate unit wearing a Zouave uniform as late as 25 June 1862. On page 186 of Sears, To the Gates of Richmond, is found the following description of a charge by Wright's Brigade of Huger's Division:
"One of these charges, by a Georgia regiment, momentarily confused the Yankees into thinking they were being attacked by their own men. The Georgians were wearing gaudy red Zouave uniforms, in imitation of the famous French colonial troops, and it was thought only the Army of the Potomac had any Zouaves in its ranks. Then someone pointed out that only the enemy would be coming at them from the direction of Richmond, and the Federals quickly opened fire on the Zouaves."
It would seem some type of Zouaves were indeed present, but the identification of these troops as being Georgians is questionable. At the time Wright's Brigade consisted of the 44th Alabama, 3rd Georgia, 4th Georgia, 22nd Georgia and 1st Louisiana. According to Todd, American Military Equipage, 1851-1872, pp. 851, 855, the 1st Louisiana Infantry included elements of the Orleans Light Guards Battalion. This pre-war militia unit in turn is described as wearing Zouave clothing.
It is therefore possible that at least part of the 1st Louisiana wore some type of Zouave uniform as late as the Seven Days battles in 1862.