In the finished script (Go to The bombing starts), the cast sing Peace begins with me during the bombing. But I originally intended them to sing Just a closer walk with thee. I wasn't there, but in the Human Shields video you can hear the harmonica playing something during the bombing. It sounds like Red River Valley (which the Jim-character probably knew because it's also the melody for the Spanish Civil War song, There's a valley in Spain called Jarama).

SINGING:

Just a closer walk with Thee,

Grant it, Jesus, is my plea.

Daily walking close to Thee,

Let it be, dear Lord, let it be.

 

I am weak, but Thou art strong

Jesus, keep me from all wrong.

I'll be satisfied as long

As I can walk, dear Lord, close to thee.

 

In this world of toil and snares,

If I falter, Lord, who cares?

Who but Thee my burden shares?

None but Thee, oh Lord, none but Thee.

 

When my weary life is o'er

Pain and suff'ring are no more.

Who will lead me safely o'er

Canaan's shore, that sweet Canaan's shore.