One thing that always amazes me is the number of photos with not just one but multiple revolvers just tucked in their belts. I can only imagine the pain in the neck it must have been to keep them all in place. And keeping them from falling out.
Just be reminded that almost all of these were studio photos with studio prop guns. Matthew Brady and his like photographers made quite a bit of money selling photos.
One would almost never see infantry or dismounted cavalry armed like that.
Mounted cavalry, especially guerilla cavalry like Bloody Bill Anderson, James-Younger, Quantrill, et al, would be likely to have loaded pistols on their person and/or in saddle pommel holsters. Due to the scarcity of Union-made pistols in the Confederacy, most would be 1851 .36 Navies or 1848 .44 Dragoons because of the quantity of them produced before the War.
1860 .44 Colt Armies, 1861 .36 Colt Navies, and 1863 .44 Remington New Model Armies (the ubiquitous replica Remington 1858) had not much of an impact for the Confederate forces, and really, the Griswold &Gunnison, Schneider & Glassick, Augusta Machine Works, Columbus Firearms Company, Leech & Rigdon, Charles Rigdon, and Rigdon & Ansley made very little impact. Many pistols procured by Confederate forces were captured Union guns, especially early in the ACW when they were winning many of the battles.
I have rattled on too long.
Jim