With a few slight variations the lyrics in the preceding posts are the ones I sing. However, on the cd "Will The Circle Be Unbroken" with the Nitty Gritty Dirt Band and guests the last two lines of the last verse are

   ...Songs that Mother Maybelle taught us
      And the angels (will?) sing along.

Can anyone supply the two missing lines?

Hows about these words

We sang the songs of our childhood
Hymns of faith that made us strong
Songs that Mother Maybelle taught us
And the angels sang our song