Methinks someone is suffering from just a wee bit of SEC envy. If it bothers Big 12 fans so much that we're so proud of our league, they may want to stop all the premature bragging about how they've surpassed us.
By the way, "Glory, Glory" is set to the tune of a campfire spiritual written circa 1855. It was not until five and six years later, respectively, that the tune was used along with the lyrics to the songs that became "John Brown's Body" and "The Battle Hymn of the Republic."
In other words, we didn't borrow our fight song from the U.S. Army; both we and the U.S. Army borrowed the music from a religious song and appropriated it to our own purposes.