Seaman, Newfoundland Dog

Seaman, a Newfoundland dog, became famous for being a member of the first American overland expedition from the Mississippi River to the Pacific coast and back. He was the only animal to complete the entire trip. He was purchased for $20 in Pittsburgh, Pennsylvania by Captain Meriwether Lewis while he was in the city awaiting completion of the boats for the voyage in August 1803, for his famed Lewis and Clark expedition.