My Uncle used to sing this song. I think it came from his time at Texas A&M, but it could have been from his Army service.

Oh when I was young and free,
and I lived in Tennessee,
My Daddy shoveled horsehit all the day,
Then one night when work was done,
He found a diamond in the dung,
And he shipped me off to join the Cavalry,

Hail, Hail, Hail the Cavalry, Boys.
To hell with the field artillery!
Scratch Army, Navy, and the rest,
We are Uncle Sammy's best,
We are Uncle Sammy's fighting Cavalry!