Sorry I have no info on "White Coral Bells." But I was interested in your mention of the song "Drifting." As a child, I also played that song from a John Thompson piano book.

The words as I remember them are: Light is our bark, brothers. Rest on your oars. Fair are the winds and the tide. Past the gray hills and the green wooded shores, o'er the calm river we glide.

It has more lyrics (at least four more lines), but those are all I remember.