Barry-

I love this one! There are very few sea songs about the cook. There were certainly a lot of nicknames such as "Doctor," "Slush," and "Duff." At least those are some of the printable ones!

The proofreader notes that the second line ends strangely:

I once was a cook on a bark, cook on a bark
That was were I made my make

Could the last word be "mark"?

Cheerily,
Charley Noble, who resides in the galley for those who know