Not sure that I ever read beyond "Call me Ishmael". Ishmael was the narrator, the Captain was Ahab and there was another character called Elijah all of which are Hebrew names as far as I know. Can't find any refereence to the Captain calling himself anything else.

The novel was of course Moby Dave Dick.

(Still trying to get my head round "'Ayesha' is also sometimes misspelled 'Aisha', which is a different name altogether".