RTim wrote: Hi all...I have been trying to find the origins of the song - "Bold Manning" or as it is also known in other parts of the world - "Bold Manon".

You'll probably find it easier to look up using Laws's designation. It's Laws D15, and his title is "Bold Manan the Pirate."

You'll note, from its Laws number, that Laws thought it of American origin -- the only non-American text he knew was Ranson's Wexford version. As you've observed, there are others (from both England and Scotland). But he knew no broadsides. I know no broadsides. Steve Roud lists no broadsides.

Looking at the distribution of versions, I'd guess that it originated in the Canadian Maritimes or Newfoundland, but that's only a guess. There is a likely reference to it from 1868:

https://www.google.com/books/edition/Once_a_Week/8dRMAAAAMAAJ?hl=en&gbpv=1&dq=dallas+%22once+a+week%22+%22on+shanties%22&pg=PA92&printsec=frontcover.

But it gives no text.

So best guess is that it is North American, from before 1868, but we can't be sure of any of that.