George- Here's what I know of it for sure.

(No names): 6 iron boats, light as possible, ordered in U.K., 18 June 1864, by Bulloch to Graves' design, with stem strengthened and rake of stern changed to fit iron construction; completed January or February 1865; very light steel hull, sectionalized for shipment to Confederacy. Engines: Too heavy due to Engr.-in-Chief William P. Williamson's careless drawings without descriptive back-up (8" instead of 7"-dia. cylinders shown). Boiler: Too small and space for firing it much too cramped. Wilmington was closed in mid-January 1865, so there is little probability these ever arrived. (Second trio were to have longer floors to accommodate larger boilers, but draft of boats unaltered.)

The above mentioned boats were brought to Bradenton, Florida and assembled. One was used by William Chamberlain to haul the submarine "Pioneer" up the --------where it was sunk by Confederate shore artillery in a friendly-fire mishap. His skeleton was still on the bottom in June of 2004, along with his wedding ring, with his name inscribed in it, along with both boats.

I do not care to disclose the location. These artifacts remain in place as war graves. I returned the ring to the Chamberlain family.