Apparently the Weavers continued changing the lyrics to suit the times. This is from a reunion concert.

WASN'T THAT A TIME
As sung by the Weavers on "Together Again" (1988)

Our fathers bled at Valley Forge.
The snow was red with blood.
Their faith was warm at Valley Forge.
Their faith was brotherhood.

CHORUS: Wasn't that a time! (Wasn't that a time!)
Wasn't that a time!
A time to try the soul of man.
Wasn't that a terrible time!

Brave men who fought at Gettysburg
Now lie in soldiers' graves,
But there they stemmed the rebel tide,
And there the faith was saved. CHORUS

Informers took their Judas pay
To tell their sorry tale.
The gangs in Congress had their way
And free souls went to jail. CHORUS

How many times we've gone to kill
In freedom's holy name,
And children died to save the pride
Of rulers without shame! CHORUS

Our faith cries out; we have no fear.
We dare to reach our hand
To all our neighbors far and near,
To friends in every land.

LAST CHORUS: Isn't this a time! (Isn't this a time!)
Isn't this a time!
A time to free the soul of man.
Isn't this a wonderful time!
Isn't this a wonderful time!