Dennis, there are quite a large number of entries, in the index volume for the ORN set, relating to operations in Florida, around the Key West regions and other associated accounts. However, there is one entry, in the index volume, which seems to point to either volume 15 or 17, as the index shows for "Cooperation of naval force in aid of army expedition into Florida, February 5 to April 16, 1864", so I will check either of these volumes to see if there is any mention of the vessels involved in this expedition, and will let you know if I come across anything giving some clue of the vessels involved.