Francis Rawdon Moira Crozier was an Irish officer of the Royal Navy and polar explorer who participated in six expeditions to the Arctic and Antarctic. In 1843, he became a Fellow of the Royal Society for his scientific work during his multiple expeditions. Later, he was second-in-command to Sir John Franklin and captain of HMS Terror during the Franklin expedition to discover the Northwest Passage, which ended with the loss of all 129 crewmen in mysterious circumstances.

Sir John Franklin was a British Royal Navy officer and Arctic explorer. After serving in wars against Napoleonic France and the United States, he led two expeditions into the Canadian Arctic and through the islands of the Arctic Archipelago, in 1819 and 1825, and served as Lieutenant-Governor of Van Diemen's Land from 1839 to 1843. During his third and final expedition, an attempt to traverse the Northwest Passage in 1845, Franklin's ships became icebound off King William Island in what is now Nunavut, where he died in June 1847. The icebound ships were abandoned ten months later and the entire crew died from causes such as starvation, hypothermia, and scurvy.