Rebellion Record: a Diary of American Events: Poetry and Incidents., Volume 5.
Frank Moore, Ed.

32. the army of the free. Division song of Porter's Division, army of the Potomac. Words by Frank H. Norton.

In the army of the Union we are marching in the van,
     And will do the work before us, if the bravest soldiers can;
We will drive the rebel forces from their strongholds to the sea,
     And will live and die together in the army of the free.
chorus — The army of the free, the army of the free;
     We will live and die together in the army of the free.

We may rust beneath inaction, we may sink beneath disease,
     The summer sun may scorch us or the winter's blasts may freeze,
But whatever may befal us, we will let the rebels see,
     That unconquered, we shall still remain the army of the free.
chorus — The army of the free, the army of the free;
     Unconquered, we shall still remain the army of the free.

We are the best Division, of a half a million souls,
     And only resting on our arms till the war-cry onward rolls;
When our gallant General Porter calls, why, ready we shall be,
     To follow him forever, with the army of the free.
chorus — The army of the free, the army of the free;
     We will follow him forever, with the army of the free.

We have Butterfield the daring, and we've Martindale the cool:
     Where could we learn the art of war within a better school?
Add Morell to the list of names, and we must all agree,
     We have the finest generals in the army of the free.
chorus — The army of the free, the army of the free;
     We have the finest generals in the army of the free.

Though we live in winter-quarters now, we're waiting but the hour,
     When Porter's brave Division shall go forth in all its power;
And when on the field of battle fighting we shall be,
     We'll show that we cannot disgrace the army of the free.
chorus — The army of the free, the army of the free;
     We'll show that we cannot disgrace the army of the free.

Then hurrah for our division; may it soon be called to go
     To add its strength to those who have advanced to meet the foe;
God bless it, for we know right well, wherever it may be,
     'Twill never fail to honor our great army of the free.
chorus — The army of the free, the army of the free;
     'Twill never fail to honor our great army of the free.