The Corinth road was at certain seasons a branch of the Tennessee River. Its mouth was Pittsburg Landing. Here in 1862 were some fields and a house or two; now there are a national cemetery and other improvements. - Ambrose Bierce, What I Saw of Shiloh
As you can see from their map, the NY Times thinks a battle on the Tennessee River should have taken place in Tennessee. Over time they should figure out that it was really in Mississippi, and will adjust their reporting. They may also add “Landing” to Pittsburg, and drop the “h”. I’ve noticed that they invariably add an “h” to any locale that ends with burg. Drives my spellchecker nuts.