Ah, here it is - page 94 of her Celebration of Life Songbook.
RING THE CHRIST CHURCH BELLS
(new additional words & music by Jean Ritchie)
Ring along! Ring along!
O ring the merry Christmas bells;
A Son is born! A Son is born!
O ring the merry Christmas bells.
Sing the song! Sing the song!
O sing the merry Christmas Time;
A King is born! A King is born!
O sing the Christmas Time.
Ring a ring! Ring a ring!
Dance the merry Christmas Time;
Long live the King! Long live the King!
O ring the Christ Church bells!
©1967, 1971, by Geordie Music Publishing.
I hope I transcribed the tune correctly.Click to play (joeweb)