Who is James Francis ( from Endurance: Shackleton's Incredible Voyage and what is their importance?

James "Frank" Hurley is the expedition's official photographer; his work appears in the photographic plates included in the text. Hurley is a valued member of the crew and often goes beyond his official duties to assist others and perform menial duties. He appears to have retained a lively imagination and sense of humor throughout the expedition and is well-liked by most of his crewmates whom he endeavors, usually successfully, to keep in high spirits. Although Hurley has little practical polar experience, Shackleton frequently seeks his advice regarding camp movements and so forth.