Henry Tureman Allen
Henry Tureman Allen was a United States Army officer known for exploring the Copper River in Alaska in 1885 along with the Tanana and Koyukuk rivers by transversing 1,500 miles of wilderness. His trek has been compared by General Nelson A. Miles to that of Lewis and Clark.
Henry was born in Sharpsburg, Kentucky. He graduated from West Point in 1882, and was commissioned as a second lieutenant in the cavalry. He served on the staff of General Nelson Miles. He later served as a military attach to Russia and Germany . Allen also served in the SpanishAmerican War in the Battle of El Caney.
Source: Wikipedia