“The top post as second-in-command went to Frank Wild, a very small but powerfully built man whose thin, mousy hair was rapidly disappearing altogether. Wild was a soft-spoken and easy-going individual on the surface, but he had a kind of inner toughness… The two men, in fact, formed a well-matched team. Wild’s loyalty to Shackleton was beyond question, and his quiet, somewhat unimaginative disposition was a perfect balance for Shackleton’s often whimsical and occasionally explosive nature.”
— Alfred Lansing

More on Wild at coolantarctica.com