It is interesting that "When I Was a Fair Maid" makes reference to "bunk". That makes me wonder when it was written. First of all, nobody says "bunk" in the American or British Navy but rather "rack". Moreover, my father served aboard a ship in WW2 and he told me they also slept in hammocks. So even as late as the 1940s, the rack had yet to be introduced it would seem aboard Navy ships.

Bunk, indeed.