Knights

Now these three mates—Starbuck, Stubb, and Flask, were momentous men. They it was who by universal prescription commanded three of the Pequod’s boats as headsmen. In that grand order of battle in which Captain Ahab would probably marshal his forces to descend on the whales, these three headsmen were as captains of companies. Or, being armed with their long keen whaling spears, they were as a picked trio of lancers; even as the harpooneers were flingers of javelins.

Squires

And since in this famous fishery, each mate or headsman, like a Gothic Knight of old, is always accompanied by his boat-steerer or harpooneer, who in certain conjunctures provides him with a fresh lance, when the former one has been badly twisted, or elbowed in the assault; and moreover, as there generally subsists between the two, a close intimacy and friendliness; it is therefore but meet, that in this place we set down who the Pequod’s harpooneers were, and to what headsman each of them belonged.