Hmmm, all this talk of Texas and the Trans-Mississippi being irrelevant and never sending anything East of the Mississippi....
Yeah that's a hundred percent false, the ports of Texas were very important.
Everyone's belief in this falsehood is tiring, for Texas sent a lot east. The ports of Texas, along with Matamoros in Mexico were very important, they were blockaded, but never to the extent of ports back east and ships continued to run the blockade there till after Lee surrendered at Appomattox. Texas had many things going for it, I'll list some of the important facilities:
1. The Huntsville Penitentiary- Important for its manufacture of cloth, usually drab or white, both in Jeans and Kersey wools
2. The Houston Depot- Underway in late 1862, this facility manufactured huge amounts of uniforms, accoutrements, and many other goods from Texas leather, Huntsville made cloth, and the ENOURMOUS amount of blue-gray kersey from Britain run through the blockade.
3. Farms- Texas naturally didn't have Union Armies running wild through its interior, and became something of a breadbasket, so much so that before 1863 supplies of food were being sent east from Texas, and even after the fall of Vicksburg, could have still sent food east if the damage done to Louisiana, Arkansas, and Indian Territory didn't necessitate sending food to those areas instead. By 1865 Texas was supplying food for all four States/Territory as loss of territory, and refugees to the CS controlled areas of those States.
It might seem inconsequential to someone who has never read anything of the Trans-Mississippi beyond a book or two on the Red River Campaign, but even after the fall of Vicksburg Texas was sending uniforms, accoutrements, etc. east of the Mississippi through a clever system of smuggling across the river at night in different areas. If it were not so, then how was it Richmond was still in contact, sending orders, and the occasional weapons shipment, and even transferring officers across the river in 1864, and transferring officers like Richard Taylor east into 1865! Sure Vicksburg may have slowed it down to a comparative trickle, but it still happened.
Heck right before the Red River Campaign Taylor's memoirs famously make mention of his troops being sent white uniforms, and him pirating a shipment of gray, (blue-gray kersey shipped from Britain to a TEXAS port) that was being sent to be smuggled across the Mississippi, him trading the shipments sending the white uniforms east instead keeping the gray for his army.
The best online resources I can recall offhand covering this is as follows:
http://adolphusconfederateuniforms.com/the-souths-white-uniforms.html
http://adolphusconfederateuniforms.com/free-article-downloads.html
On the second link, the read I'm recommending is "Confederate Clothing of the Houston Quartermaster Depot". They're uniform articles, but full of dang good information on how plenty of stuff was sent east of the river. Heck early in the war the Huntsville Penitentiary sent cloth to several different depots in eastern states for them to make uniforms.
Texas Ports being meaningless is a bunch of bull manure lol.