I've also been trying to find the words. We sang it in our childrens choir in the 50's/60's. It went...
'Neatht the silent stars a child is sleeping
Flocks are safe within the fold
Secure from danger, want or cold
Silent, Silent Night
Holy, Holy night
Sleep in heavenly peace (2 times)
I think this is it or close to it. That was over 60 years ago.

The song is called oh night of holy memory it is in the silver Burdett blue music book grade 6 copyright 1956 page 92 originally it appears to be copyrighted in 1945 and was used by permission for that music curriculum book. The words are
'Neath the silent Stars a town is sleeping
flocks are safe within the fold
secure from danger want or cold
Silent,silent night holy night holy night
sleep in peace sleep in Heavenly peace in peace ....
the second verse is
Over moonlit Plains are Angels winging,
see their robes of glistening gold
reflecting a celestial light? (That's what it says.) Silent,silent night, holy infant so tender and mild, rSleep in heavenly peace, in peace.
I hope that helps everyone. I used to teach elementary music and choose curriculum for the schools for music.
I've been singing it for 50 years but this is the first time I found it in the book, thanks to someone else on this website that said it was in a silver Burdett music book.
Quite beautiful and fun to sing as a descant along with Silent Night melody,, I've often wondered if it might sound beautiful all by itself as well

Youre not alone on this one
I learned the same descant around 48 years ago
It came from the High School choir in Roseville Michigan. Same lyrics. I guess it's called a descant but we sang it right alongside Silent Night.
Beautiful lyrics, beautiful melody.
I still sing it every year, but I wonder where it came from also.

I also learned this descant in the 5th grade (c. 1961) because it was in the school music class textbook. I think the publisher was Silver-Burdett.

I clearly remember the lyrics from my solo as a 6th grader in 1980. I am a tenor (female) and someone thought it was a good idea for me to sing the descant of Silent Night while the rest of the class "Whispered" Silent Night.
It was something to hear.

Through the silent night the town was sleeping
The sheep were safe within the fold
Safe from danger, fear and cold
silent silent night
holy holy night.........

It's called, " 'Neath the Silent Stars".

I learned this descant 65 years ago in church choir in Phoenix Arizona. We sang:
'Neath the silent stars the town is sleeping
The flocks are safe within their fold
Safe from danger fear and cold
Silent, silent night
Holy, holy night
Sleep in peace.
Silent holy night
Sleep in Peace.
Catherine - Guest

Are you talking about the Peace, Peace descant?

https://www.jwpepper.com/Peace%2C-Peace ... em#/submit

These were the lyrics I learned about 1961 from Mrs. Bacon at Birney Elementary School in Long Beach, California. It is exactly the same as the guest post of Dec 05, 2010. It also makes me wonder if the guest post for Dec 15 of 2010 was taught by the same teacher:

Through the silent night the town is sleeping.
The sheep are safe within their folds.
They're safe from hunger, fear, and cold.
Silent, silent night
Holy, holy night
Sleep in peace, silent, holy night
Sleep in peace

I just found myself singing this to Silent Night on the radio, and also wondered about it. We also sang it in the 60's or 70's. Thanks for the info.