Orlando Metcalfe Poe

Orlando Metcalfe Poe was an United States Army officer and engineer in the American Civil War. After helping General William Tecumseh Shermans March to the Sea, he was responsible for much of the early lighthouse construction on the Great Lakes and design of the Poe Lock at Soo Locks between lakes Superior and Huron.

Orlando Metcalfe Poe was born in Navarre, Ohio. After going to local schools, he attended the United States Military Academy, graduating sixth in his class in 1856. From then until 1861 he served as assistant topographical engineer on the survey of the northern Great Lakes during this time he was promoted to first lieutenant.

Source: Wikipedia