Career
Born in 1833 in Boston, Massachusetts, Seanor was living in New York when he joined the Navy. He served during the Civil War as a master-at-arms on the United States Ship Vincennes. Although their enlistments had expired, Seanor and crewmate Andrew Jones voluntarily transferred to the United States Ship Chickasaw to fight in the Battle of Mobile Bay on August 5, 1864, during which they "carried out duties gallantly".
Seanor later served on the United States Ship Guerriere (1865), and deserted on Christmas Day 1868 when the ship was visiting Montevideo.
