The correct answer is Captain Franklin.
Sir Humphry Davy is an allusion for the British chemist Sir Humphry Davy. inventor of the miner's safety lamp and has discovered many chemical elements.
Captain Ahab is referencing the main protagonist of Herman Melville's "MobyDick."
Heims-Kringla is a reference to a collection of sagas of early Norwegian kings, distinguished for its depiction of cause and effect.