John Mercer Brooke was an American sailor, engineer, scientist, and educator. He was instrumental in the creation of the Transatlantic Cable, and was a noted marine and military innovator.
John Mercer Brooke
Brooke's deep-sea sounding and core-sampling device
Matthew Fontaine Maury was an American oceanographer and naval officer, serving the United States and then joining the Confederacy during the American Civil War.
as a U.S. Navy lieutenant in 1853
Maury in 1855
Commander Matthew Fontaine Maury
Grave of Maury in Hollywood Cemetery