I found a Fisherman's Friends performance of "Shenandoah" here:

https://www.youtube.com/watch?v=0LuCuF2_W7Q

SHENANDOAH

O Shenandoah, I love your daughter,
Away, my rolling river.
Shenandoah, the white mulatta,
We are bound away from this world of misery.

For seven years, I toiled(?) the ocean,
Away, my rolling river.
For seven years, I've been a rover,(?)
We are bound away from this world of misery.

I courted Sally, no pen no paper...
I courted Sally on foolscap paper...

Nobody knows about my toiling...
Nobody knows about my danger...

O Shenandoah, I love your daughter...
Shenandoah, the white mulatta...

That's pretty close. Many of the lyrics were hard to hear because the recording has more background noise, than singing.

Hope that helps.

-Joe-