As for the Ottawa and its crew, they would go on fighting in Florida and along the South Carolina and Georgia coastline for the remainder of the war. They were instrumental in recovering the original yatch America, the 1852 winner of what became the "Americaís Cup" on the St. Johns River south of Jacksonville. Lt. Cmdr. Stevens was to command the ironclad USS Monitor for a month then moved on to command several other ships. He eventually retired as a rear admiral in 1871. Stevens died in 1896 and is buried at Arlington National Cemetery. The Ottawa was sold at auction after the end of the war.
There are a number of references of the U.S. Gunboat Ottawa firing on the last train from Fernandina, but no one has recognized that this was most likely the first time in history that a warship fired on a moving train. It was during the Civil War that trains were first used in full support of troop and supply movements. Prior to this, the only usage of a train during a war was in France, and that was a short line to bring supplies inland only a few miles. The Civil War had many historical "firsts" identified, but so far no one has recognized this unusual event in this respect.