Arlo Hanlin Hemphill is an American wilderness advocate. His educational background is in marine biology. Hemphill is a Fellow National of the Explorers Club and has been listed in Nature as one of 100+ global biodiversity experts, credited for his expertise pertaining to the Greater Caribbean and the Tumbes-Choc�-Magdalena biodiversity hotspots. He is best known for his involvement in regional-scale ocean conservation and was a founding steering committee member of the Deep Sea Conservation Coalition, the Forum for the Conservation of the Patagonian Sea and Areas of Influence, and the Sargasso Sea Alliance. 

October 7th, 1971 in Baltimore (Age 53)