Matthew Fontaine Maury was an American astronomer, historian, oceanographer, meteorologist, cartographer, author, geologist, educator, and naval officer for the United States and then the Confederacy. He was a devout Christian and, after reading Psalm 8:8, was determined to find "the paths of the seas".
He was nicknamed "Pathfinder of the Seas" and "Father of Modern Oceanography and Naval Meteorology" and later, "Scientist of the Seas" for his extensive works in his books, especially The Physical Geography of the Sea, the first such extensive and comprehensive book on oceanography to be published.
In 1825, at 19, Maury obtained, through US Representative Sam Houston, a midshipman's warrant in the United States Navy. As a midshipman on board the frigate USS Brandywine, he almost immediately began to study the seas and record methods of navigation. When a leg injury left him unfit for sea duty, Maury devoted his time to the study of navigation, meteorology, winds, and currents.
He became Superintendent of the United States Naval Observatory and head of the Depot of Charts and Instruments. There, Maury studied thousands of ships' logs and charts.