The 3 verse version by the Stanley Brothers & others varies the 3 repeated lines pattern. Instead of asking about each parent in a verse & answering in the next, the answer is in the 3rd line. They also seem to have swapped what each parent is doing.

Bright morning stars are rising
Bright morning stars are rising
Bright morning stars are rising
Day is a-breaking in my soul

Oh where are our dear fathers?
Oh where are our dear fathers?
They are down in the valley praying a
Day is a-breaking in my soul

Oh, where are our dear mothers?
Oh, where are our dear mothers?
They have gone to heaven shouting
Day is a-breaking in my soul

Repeat vs. 1