The official Army version is from 1956.
Over hill, over dale, we will hit the dusty trail
As the caissons go rolling along.
Up and down, in and out,
Countermarch and right about,
And our caissons go rolling along.
For it’s hi-hi-hee in the Field Artillery,
Shout out the number loud and strong.
Till our final ride, It will always be our pride
To keep those caissons a rolling along.
Song pdf & midi below