This is what I can discern by ear from Jeff Warner and Jeff Davis' album "Two Little Boys." There's just a very slight change in wording, but I'll give you the whole thing...

Two little boys had two little toys
Each had a wooden horse.
Bravely they played each summer's day,
Warriors both, of course.
One little chap, he had a mishap
And broke off his horse's head.
He wept for his toy but cried for joy
When his young comrade said,

Do you think I would leave you crying,
When there's room on my horse for you?
Climb up here, Joe, and don't be sighing,
She can go just as fast with two.
When we grow up we'll both be soldiers,
And our horses will not be toys,
And maybe we will remember
When we were two little boys.

Long years then passed, the war came at last,
Bravely they marched away.
Cannons roared loud, among the crowd
A wounded and dying Jack lay.
Then came a shout, a horseman dashed out,
From out of the ranks of blue.
He galloped away to where Jack lay,
And his voice came brave and true:

Do you think I would leave you dying
When there's room on my horse for you?
Climb up here, Jack, we'll soon be flying
To the ranks of the boys in blue.
Do you see, Jack, I'm all of-a-tremble;
Well, perhaps it's the battle noise.
Or maybe it's I remember
When we were two little boys.