The "Handbook of Texas." in its article on General Hood, states, " As the remains of the Army of Tennessee retreated toward Tupelo, Mississippi, it sang, to the tune of the 'Yellow Rose of Texas,' "You can talk about your Beauregard amd sing of General Lee, but the gallant Hood of Texas Played hell in Tennessee."
"Relieved of command at his own request on January, 23, 1865, Hood was attempting to make his way to Edmund Kirby Smith's army in Texas, when the Confederacy collapsed."

The Editors of the Handbook are quite careful, and I presume that they have documentation in the form of contemporary writings.

Hood