"Those dismounted guys weren't around any more to complain... having been either shipped across the Mississippi with Van Dorn, or were down in Louisiana with the Texas Division."
You are correct about the troops with Van Dorn, but I was not even considering those numerous dismounted regiments sent across the river with him prior to Hindman taking command.
My focus was on the cavalry, and otherwise mounted, units that Hindman dismounted during his span of command, and which were serving as infantry when the companies of Hill's cavalry regiment were organized, or were in the process of organizing.
Based on Bryan's post about the muster dates for the companies of this regiment, there appears to be 6 companies mustered by April 25, 1863, not to mention 2 companies with unknown MI dates.
Walker's Texas Division, including 3 regiments & 1 battalion of dismounted Texas cavalry regiments did not leave Pine Bluff for Louisiana until April 24.
In addition, the bulk of the infantry units in Holmes command at about this time included components, or in some cases, entire regiments, that had been dismounted by Hindman and subsequently Holmes.
This includes virtually all of the Missouri infantry regiments, and several of the Arkansas regiments.
As mentioned, the Prarie Grove losses, and the subsequent disaster at Arkansas Post [including 5 more dismounted cavalry regiments], had seriously eroded the infantry strength of this command.
That is why I am confounded that cavalry regiments continued to be organized after the recent mass dismounting, and then severe campaign losses by the infantry.
Seems that the high command was operating at cross purposes as it pertains to dismounting so many existing cavalry/mounted units only to turn around and organize entirely new cavalry commands. That's what causes me to think this could not have been good for morale among the infantry troops tha had previously been mounted.
Of course, command contradictions were not unusual for Trans Mississippi operations.