This lullaby has been sung in my family for six generations - back to my great-great grandmother, that I know of. I have been looking for the origin for years, and wondered if it was Irish or Scotch-Irish, as we have that heritage. My great-grandmother grew up around New Orleans, and my grandmother and mother grew up in Indiana.

I saw a ship go round the bend
Goodbye my lover goodbye
Twas laden down with jacks and men
Goodbye my lover goodby

By Baby, By Low
What makes you cry so
By Baby, By Low
Goodbye my lover, goodbye, goodby
goodbye my lover, goodbye